How to Undervolt and Overclock Legion Pro 7i for 10% More FPS! i9-13900HX and RTX 4090 Optimization

what's up and welcome back to another optimization guide with gizmoslip tech we're doing the legion Pro 7i which I have right here on the table you can see this bad guy right here so this is the I9 13900hx with RTX 4090 and if you don't know what undervolting is undervolting is essentially telling the CPU to run at a the same amount of wattage but at a higher speed on the processor thereby giving you more performance per watt going through your CPU it used to be that when you undervolt it it would reduce your temperatures on your CPU but that's not really the case anymore but because before it would also reduce your wattage at the same time when you're undervolting nowadays the way it works is basically you're telling the CPU to go faster at the same amount of Watts which gives you more performance for the same amount of wattage which is great theoretically it should not affect the long-term liability or viability of the laptop because you're running at the same amount of heat um and so this is the Legion laptop right here in front of me and this guy has some of the best specs for the money that you can get I don't think that the legion is the Pinnacle of most premium laptop features out there but it provides excellent value for the money and one of the nice things about this Lenovo Legion is the Vantage software which it provides a lot of customizability that a lot of other laptops don't have and the Lenovo Vantage software you've got CPU overclock which this is a new feature I've actually never tested this feature install the driver to activate CPU overclocking interesting well let's try installing this if we can okay so we did successfully install that driver this is giving us access to your core voltage offset and your efficiency e-cors offset and then you also have actual clock speeds here I doubt that you're actually going to get any core clocks to change here just because you're telling it to Target a higher core clock on the e-course for example it's not going to actually go higher but you've got a core voltage offset and an e-core offset and inside a throttle stop we actually have additional settings that you can set beyond that you can do CPU core which I already have and offset in here and my throttle step of -160 which so far has been stable on my P cores my P chord cache minus 125 also stable sa agent minus 50 Intel GPU minus 30 igpu unslice minus 30. CPU e core minus 100 is what I currently have going the biggest thing that I'm not seeing in the Lenovo Advantage software here is that there is no cash offset so the P core cash offset is not in here as an option and that can give you a nice extra bit of performance being able to undervolt the cache so right now I'm going to set this to nothing so I have I have a preset here in throttle stop I'm going to set it to nothing so zero this is nothing is undervolted in this uh configuration so we're going to go ahead and save that we should have uh zeros now in our offsets here inside of HW info let's verify that we no longer have an overclock being applied it's still of uh undervolting everything so we might have to manually adjust these things so I'm guessing until you actually until you actually tell it to change it to a different value now I have throttle stop configured so that it will always start up at the beginning when you log into Windows okay so now we have zeros for our offset so this is how you can tell if your system is actively being undervolted you actually have to close HW info for it to pull this data it does not pull it after HW info is open but under the core I9 here you can see there's voltage offsets and you can expand this down to make it bigger and you can see each individual offset that you can ad and you can see that right now we have nothing we have nothing activated for our offsets I'm going to leave this just like this for right now if we were to use this to to do our undervolting instead I'm pretty sure it would work but I'm not sure what they're using in the background to do this okay so if you do encounter like uh where the laptop will not turn on because you undervolted too far then you can hold the power button for 8 to 15 seconds to restart the computer and restore default parameters we're just gonna put it in performance mode notice that we are in GPU mode dgpu there are a bunch of different modes here honestly I don't know the dgpu mode is actually going to improve things at all for you because this does have an advanced Optimus with a mux switch and basically D GPU mode utilizes the mux switch to disable the integrated GPU entirely and you cannot switch to good battery life mode in this mode here so hybrid mode is probably the best option there is igpu only mode as well which if you need for sure better battery life and you're not going to use the Nvidia GPU you can use this as well which is nice to have that option uh but in general best gaming performance will probably be in D GPU mode or in hybrid mode with Nvidia GPU selected theoretically it should have no performance difference between those two basically dgpu mode disables the igpu which theoretically might slightly improve the CPU performance because you don't have to run the integrated GPU we're going to do some basic tests and we're going to see what we get for performance P cores pcores right now doing 4.1 gigahertz 3.39 gigahertz 4.1 gigahertz 3.4 gigahertz basically 164 watts of power so a lot of power 83 degrees on the CPU package 77 on this the course 29 545. that's a pretty good score let's let the let's let's send it back to R23 run here uh with focusing on the window this is going to give us a bit more of a ideal type of a score we'll do like a few of these in a row and we'll get an idea of what our best case scenario is out of the box in performance mode this CPU will push up to 165 watts of power on its own but theoretically the short power limit is actually 190 but I never see it pull that much if you if you keep running these continuously what you'll see is the CPU package power will drop to 140 Watts eventually what we're looking at here is again 4.1 gigahertz on the pcores 3.4 gigahertz on the e-cores this is not bad this is not amazing you have to really continuously Pummel the legion Pro 7i in order to get it to drop to the 140 watt level 28 900 that time but I did notice too that even if it's dropping to 140 it will oftentimes bounce up 29.9 K best score was just over thirty thousand now doing 28 to eight let's let's go ahead and get some thermal test done now let's see what we get for average temps 89 degrees right now on the CPU package power so that's not terrible but it's not great so notice that our package power is only 135 right now 145 we're not pushing 165 Watts anymore our core package and CPU package temps are also going to come down that's the good thing about only doing 140 Watts the system can run fairly cool considering the amount of waters going through the system is reduced at 140. and so now we're doing 3.8 gigahertz on the P cores but I think these numbers can be significantly improved 29 120. so right around 30 000 in the initial runs then it goes down to about 29.1 k for our continuous runs okay so looking at our temperatures our temps initial temps are pretty good we're pulling 66 72 Watts so 60 to 70 Watts on the CPU 173 174.5 so basically 175 175 watts to the GPU only 2025 5 1999 so right around the 2000 Mark for our GPU core clock our memory clock is at 9001. so those are the stock out of the box GPU clocks you can expect 80. we've broken the 81 degree Mark 82 degrees on that CPU 75 degrees on the GPU again the GPU boost is around 2 000 a little less a little bit more 2100 now so it does boost up into the 2100 range but most of the time it seems like we're doing around the 2000 Mark 85 degrees on that CPU right there okay so we managed 21 965 for our out of the box graphic score 15 849 for our CPU score if you do want just a basic GPU overclock you don't want to mess with anything else you don't want to download anything else and same for the CPU you can do CPU undervolting right here but you'll need to enable this in the Bios so I think bios is our next stop but you can see you can you can under volt up to 160 millivolts and same for the e-cores as well though I don't I think the e-course will probably be unstable at that high of an under volts you also can potentially overclock CPU performance here and there a little bit but most likely I'm not seeing I doubt you're going to see any performance gains here because it's saying to Target 4.9 or maybe 4.8 here gigahertz for our P core all core clocks and that's just not we're not even hitting that we're only at 4.1 when we're at 165 Watts so yeah and we're only 3.4 and not 30 uh 3.9 on the e-core so we're not even hitting our tops but in order to get this CPU overclock option to even pop up uh we go into the BIOS I'm not recommending to use this CPU overclock option because you don't get all of the full functionality like being able to undervolt your cache but it it is nice that it's integrated directly into the primary application so it's in some senses more simple the GPU overclock is also optioned inside of the Vantage software here and you can do up to 200 megahertz on your GPU clock and 400 megahertz on your memory overclock your vram vram in this generation can be overclocked more than 400 almost all the RTX 49s will probably be able to overclock 200. this one for example appears to be stable at 240 at least I haven't I have not pushed it to the max limit yet either custom mode so there's four different modes quiet mode really going to hamper your performance balance mode it's going to give you a decent performance and then performance mode gives you Optimal Performance basically just ramping the fans pretty heavily but not quite Max fans under custom mode you can adjust the performance level inside of here you can set up to 160 Watts for the pl1 you can do long-term cross-loading 110 you say the CPU maximum temperature you say you want to do 99 is your throttle temperature long-term power limits 140 CPU short-term power limits 190. the important thing you need to make sure for gaming is that you need this total processor power Target to be as high as possible here otherwise your GPU will not do the dynamic boost so if you're trying to use uh like if you set this set to 50 Watts or 45 watts and your CPU is using more than 45 Watts the GPU will not boost more than 150 total or whatever your power limit you set here for your GPU so this is your base GPU boost wattage and this is your Dynamic boost which will only apply when the CPU is pulling less wattage than what's in this bar so if we set this to 110 to see if you can pull up to 100 watts of power or up to 109 watts of power and the GPU should also still hit 175 Watts that's the way to read this just by setting this custom mode without undervolting this is this is essentially like over overclocking but without any undervolting being applied we'll go ahead and save these settings the other thing you need to know about custom mode is that you can set a custom fan profile curve based on temperature so you could say like oh when it gets to 60 temperatures I want Max fans and we're going to ramp up this much so that way there's at least some fans going at all times and this would very quickly get you to 100 fan speed the other option is you can just run it in full speed full speed will just give you Max fans all the time which I would not recommend all the time doing I would probably recommend doing a custom curve but for today's testing we will be doing full Max fans 165 Watts still not going Beyond 165 Watts here with custom mode enabled though our temps are better 4.1 gigahertz 3.4 gigahertz so going into custom mode is not going to give you any more CPU performance it's just going to give you better temperatures because of increased fan speed that's pretty much all that's going to give you okay so in order for us to get into the BIOS we're going to press the power button and then we're going to tap F2 over and over look at how bright that backlight is I love it and there we're in the Bios okay one more once we're in the Bios we'll want to go to more settings here in the bottom right once we get into here we'll go to configuration and we'll want to scroll down here's the restore default overclocking option if you need to revert all your overclocks so you can disable your e-cores there at with active atom course that's your e-course you can disable them if you want Legion optimization you want to enable this this is going to enable CPU overclocking feature and you want to disable undervolt protection this is going to let you use throttle stop so this is going to enable the overclocking inside of the Vantage software if you want to take advantage of that undervault protection will let you do apply under volts though you'll need that to use throttle stop GPU overclocking you're going to want to enable that if you want to be able to get the most performance performance mode setting is set to Extra dream that's what I have set too I don't know how much of a difference that actually makes system Peak power you can control the system Peak power to extend battery life I guess that's to for battery mode you don't have to worry about that for performance optimization but uh yeah those are the those are the key things that I change to enable all of the undervolting and capabilities that this laptop has so we're going to go ahead and save changes I have throttle stops set up to automatically launch when I open a turn on my laptop so you can see it's right here open so under the options section here you'll want to have an AC profile set and a battery profile set usually one is set for AC battery profile set to four you have to enable these check these boxes and then you'll want to potentially adjust your undervolt if you're unstable if you're unstable with battery mode versus plugged in mode you'll want to have a battery under volt that is stable and to be able to adjust these these under bolt settings you click file driver here you go to Fiverr this opens up our primary window for changing settings six different under volts are right here these little options at the top under Fiverr control are per are are four different modes that we can set up as performance game internet and Battery generally speaking you only really need one mode unless you run instability when you're on battery life and then you'll want to have a battery version as well and under battery my recommendation is just to make your undervolt a little bit less aggressive if you have instability issues so I set my battery under volt to only be minus 100 the cache I did not add an under volts to that but I was just messing with these settings to see if they change when I unplug the laptop and they do indeed change when you unplug the laptop if you have this set up under two different profiles under save voltage changes in the bottom right here you have do not save voltage changes is your default okay so this means that you can play around this is what you should have selected when you're not sure that you are stable or not especially for booting up if you're trying to go super aggressive with your undervolt you do not want to have save voltage after throttle stop exits or Stables immediately maybe say voltages after throttle stop exits is okay but generally do not say voltages means that when you close throttle stop you're not gonna and you like restart your machine you won't be undervolted if you do say voltages after throttle stops exit obviously need to exit throttle stop and then their voltage will be saved permanently or say voltages immediately means that it's gonna those voltages will always be active whenever your specific profile up here is Select and this can be a two-edged sword for example if you if you hit save voltage immediately and your system immediately crashes when you reboot and your throttle stop is auto starting you may run into instability before you can get back into throttle stop and disable it so that's the main downside there you have to enter safe mode in Windows to prevent the startup from happening throttle stop to turn it off or you could go into the BIOS and disable undervolting as well to be able to change your throttle stop settings that'd be another option my recommendation for the saves is say do not save changes until you find another volt that you've found to be effective and stable that you want to use as soon as you find that undervault then you can hit save changes immediately and then your undervolt will be active as soon as throttle stop opens up again otherwise you'll have to reset your undervolt every time you open throttle stop let's talk about setting up throttle stop for your initial launch okay so you're going to want to go to the start menu here you'll want to do task scheduler and you're going to need to create a new task so you're going to create tasks you can name this TS launch you know throttle stop launch that's fine triggers you're going to add a new trigger to this it's going to be on at login of any user or if it's only for you using the laptop you can do that too but any user log in and then the actions will be start a program and you're just going to go to the throttle stop folder uh wherever that is and you'll want to not move that throttle stop folder otherwise it'll the scheduler will break obviously and you just click throttle stop as the program click OK and now whenever start the machine throttle stop would automatically open I'm not going to go ahead and save that because I've already created that task inside of the task scheduler throttle stop automatically opens because of the task scheduler that I've already set up this is the IELTS GT500 laptop cooler we're going to use this to help reduce our temps I do not think that the legion Pro 7i really needs it this is a laptop that has good temps out the box but we're gonna see today how much this cooler can Aid the legion Pro 7i this cooler was the best cooler that I tested out of a batch of coolers that I bought it has an air filter which helps prevent any additional dust from getting in your laptop it's got a like suction Style uh air blowing like sucks air in from the back and kind of pushes it up into the bottom intakes of your laptop and because the air is filtered like I said it should help reduce them out of dust that goes in your machine and your fans so you get additional RGB around your laptop with a cooler it's a very loud cooler that's the main downside to it in my opinion and we're going to go into the Lenovo Advantage software we're going to set it to custom mode okay under custom mode we're just going to set everything to Max cross load set this to 109 so that way your GPU never down clocks to 150 and we have full fan speeds going right now both the legion fan and the GT500 cooler is going at Max our offsets are here you can see the offset minus 160 millivolts minus 125 for the ring then our L2 is -100 those are the three this is the cache the ring is the cash and those are the three most important ones so we were doing 4.1 gigahertz before we're now doing 4.6 on our P course that is huge 500 megahertz increase 3.7 gigahertz on our e-course from up from 3.4 so 300 megahertz on our e-course 500 megahertz on our P cores and look at our score 32 500. 33 000 22. all right so we've increased our performance on our CPU by 10 that to me is phenomenal undervolting value right there right now we're only doing 69 on the cores 74 for the package and the highest temp we've recorded so far is only 76 degrees on the CPU let's go into a 10 minute test it's pulling these 4.6 gigahertz 4.5 gigahertz 3.6 3.7 gigahertz on only 152 watts of power so we're pulling less wattage and having higher clock speeds at the same time of course pulling less wattage that's also going to help translate to lower temperature as well so only 77 degrees on the package 71 on the course right now with the peak temp for the package being 77 degrees while pulling all of this juice through the CPU that is really great temps so we've effectively dropped the CPU temp by 12 degrees by adding Max fans and the laptop cooler while at the same time increasing our performance in cinematr23 by 10 percent 32 700 so that's 3700 Point increase in our long power limit performance a phenomenal performance game 32 900. so if we were to average those three together we'd be getting right around 32 000 say 650 there's a crash right there so that means that we have our undervolt over tuned a bit if this happens I'd recommend dropping your undervolt back say 10 or so okay so if we're to adjust our undervolt settings opening throttle stop here we're going to go ahead and drop this down to uh say 150 for our P this is our most aggressive underbolt so this is the one I'm gonna adjust it might be some other undervolt that's causing this but we're just gonna do 150 for our P cores and we're going ahead go ahead and save those settings so we've reduced our under volt by 10 millivolts if we crash again we'll know to continue reducing our under volts by an intervals of 10. it basically is what I do if you want to ensure stability more quickly you can do intervals of 20. once you've found stability you can increase it back until you find the right level let's go ahead and do our calculations for how much improvement in long-term power limits we had we had 29 100 before our long-term power limit performance versus long-term power level performance we had a gain of 3600 and we're going to divide that by 29 100. we had a 12.4 percent performance gain overall from undervolting the I9 processor like I said this isn't necessarily the maximal undervolt uh we did run into instability but there might be other aspects like maybe we could increase the E Core 100 volt further or maybe the cache undervolt further because we may not be maxed on all three of the relevant undervolt we're going to go ahead and do undervolting the RTX 4090 for best thermals and best overall performance all right so MSI afterburner this is the default skin you can change the Skins to different things the way we're going to be under volting is going to be different than when we do Max Max performance overclocking if you want to under volt for the most performance the first step is get 3D Mark time spy running and you'll want to run it in a loop or you can run Heaven Benchmark or whatever you want but we're going to do it in a window mode we're going to Loop it and we're gonna do Graphics test two we're going to run this in the background what this is going to do is it's going to set our GPU to basically highest possible performance mode it's going to give us realistic feedback for whether our overclock is stable or not at least initially now not every game engine is going to perform exactly the same as 3D marks so you may run into instability and issues basic overclocking is just taking change this core clock up and down to overclock and under volts if you were to under volt it you could just like minus this down this is not what you want to do but I'm just saying like this is one way you could undervolt your system you apply this it's going to reduce your core clocks here which is just not going to be very good for your performance level okay instead what I recommend doing if you're trying to under volt your system go to the curve editor this curve editor see this line going across that shows us what active node is being utilized when the G CPU is in high performance mode you'll be able to see what node range is used for the performance so each node here represents a clock speed on the left that the GPU is hitting and a voltage in millivolts right here so 850 millivolts or 0.85 volts is very common now I have HW info configured to show me my GPU voltage you go down in HW info you click on your core voltage you right click and you click rtss and then you click show value and OSD and show label if you want to have the label so you can see that right now the GPU is pulling 865 millivolts 840. this is all stock no overclock currently being applied right here you can also see our active voltage at the same time 885 850. so we're seeing a range of 8 40 to 875 is very common in after burner if we click the curve we can see that range being hit right here you can see that's 845 right there that's the 845 node if I press tab I can move down the list of nodes here when you're trying to overclock your system when you use the curve editor you can adjust each node individually versus when you do this core clock slider you're just raising all of the curve the whole curve is going up so we probably just crashed because of the undervolt because I did not apply that overclock that overclock was not active going up and down so I'm going to go ahead and lower my over my undervolt on all my stuff all right so our undervault just got a little bit less aggressive essentially when you're trying to optimize for most possible best possible thermals what you want to do is Target a low end on your curve a little bit below the wattage that your GPU normally pulls we saw endearing Max performance mode we saw that we were hitting in the 840 range a lot and that gives a right around a 2000 boost clock so what we would want to do is prevent the GPU from going to the full wattage and we will instead want to go a few nodes down save five or six nodes let's go to the 800 node here and what we want to do is just raise our boost clock up to that default around 2 000 or maybe like right now I would probably add plus 200 basically to the the curve there and then we'll apply that that flattens our curve right around that area and now we also want to click that node and we want to press Ctrl L that'll lock our voltage to that lower voltage range and help prevent the GPU from pulling any additional power which what that does is basically gives us better thermals and we're going to get the same performance you would get out of the box for the GPU all right and what we want in this type of scenario is for our temps to also be really excellent and what we want is to get a high boost clock on the GPU while reducing our wattage okay so we were basically doing 173 to 175 Watts previously and and we're only doing about 2 000 on the GPU boost now you can see that we're occasionally but wow we're occasionally bumping our wattage up and if you look it's because the curve it's still these some of these are some of these need to be dropped a little bit because we're occasionally hitting them and really what we want is the GPU to only hit 800 millivolts here that's when we're hitting the lower wattage level with the same level of performance honestly this is better performance than out of the box performance because before we were doing around 1990 2000 or so megahertz on the Boost clock now we're doing 2070 which is more while at the same time having less juice going through the GPU so this is an under volt that optimizes our thermals if we want to go to just if our goal is stock levels of performance you know we could try to go even further down the undervolt train say 775 node and let's take this up to the 2000 Mark A Plus 215 overclock we may want to go ahead and lower our curve down like this so that way our GPU doesn't boost up the way we wanted it or the way it was there we want to keep the GPU to this 775 node so we're going to set it to 2000 just like that to be able to do this you click and hold Ctrl and drag down with your mouse see now notice that all of this whole row here got lined up for us so now it's not going to boost our wattage Beyond let's also go ahead and do control L to lock our voltage to that lower node and now let's see so 775 and we're hitting 1995 for our GPU boost clock and look at our RTX 4090 wattage 146 now so and our temps are only 61 degrees 69 on the CPU absolutely phenomenal temps remember we were getting up to 85 degrees on the CPU before and our our GPU was doing 75 I believe so we've dropped 15 degrees on the GPU because of the laptop cooler and the GPU undervolt we've done about minus 15 degrees on the CPU right now what I have here is basically stock performance for the GPU but lower wattage and overclocked an undervolted CPU for optimal GPU performance now let's go ahead and talk maximum possible performance on this system I'm gonna go ahead and reset our curve here so our we have a default curve again the so the tricky part I when I was trying to get the GPU to lock to a specific voltage I couldn't get it to do that the V bios one keeps once keeps wanting to jump around the voltage range so like it's jumping around between 835 800 something like that 840 all the way up to like 870 8.80 and because it keeps jumping around even locking the voltage on the Node here didn't do it the way I wanted to like when I was doing the RTX 4060 4070 I was able to select the highest node and the GPU the V bios is always hitting that that node all the time and it wasn't a problem we could we could try to just lock our voltage to that specific voltage node and it would just Peg it at the highest overclock possible you can't do that on the Legion or I was not able to get that going on the legion here so so that's the tricky part about doing this overclock right now and that's why currently the best performance that I've been able to get out of the system is just raising the r curve overall so that way as it jumps between the different voltage levels we're getting the best possible boost that would involve just saying hitting this to let's try 250 I don't know if 250 will be stable or not let's just do 400 on our vram all right so we've applied that now so right now it's at 825 core voltage look at that 2400 on the Boost clock for a little bit there 840 840 845 22 35 22 20 22 35 22 20. obviously I believe that you probably could wipe the V bios out and install a different V bios maybe be able to get it to lock to a specific node and and stay there rather than shifting around between these different nodes but right now we're getting into that much higher boost clock range we were again you know around the 2000 boost clock now look at us jumping between 2200 to 2300 occasionally dipping below that 2200 right in the 2175 range but on average I'd say we're averaging around 22 30 to 22.50 depending on what voltage node the GPU jumps to and look at our our CPU is also cranking at 78 watts of power GPU doing 173 watts of power and our temps are still great so that is just phenomenal custom mode with Max fans and a laptop cooler really to keep the CPU and GPU in this performance range while pulling this kind of wattage is very impressive let's say we were going to try to lock it to 840 because it keeps boosting that low and let's just say we wanted to keep it a stable to 22.50 let's see if we're stable trying to do this we're going to try locking the voltage press Ctrl L to lock the voltage let's see what happens so look at it it keeps dropping now it's 825 voltage 820 and look at our our clock speed right here is only 21.90 now that it's hitting the 840 we're getting the 2250 range but it's not it's not holding steady to that voltage I don't know I guess you could try doing the lowest possible node like it was trying to do it under 825 let's try using 825 as our locking voltage node and let's only do 2200 let's see if we can get a stable overclock here so it's staying at 21 90 right now at the 825 voltage uh and it's not quite staying perfectly stable it is dropping to the 2175 range so it keeps jumping down but it's it's staying pretty stable around this this point but the thing is we're not getting maximum performance because we're not pulling the full 175 Watts on the GPU either but we are getting we are overclocked and we are getting slightly lower wattage so this is a pretty good overclock under volt for kind of Optimal Performance range I don't know if it would be stable or not so anyway the best performance that I have been able to see in this system is just to set your overclock we're going to do 21 or we're going to do 250 a 500 memory overclock this is the highest stable clocks that I've seen on the GPU so far averaging over 2200 sometimes boosting even higher our overclock here is quite nice 2300 on our boost clock very high for an RTX 4090 over 2200 is high you know like I said the the stock out of the box 4090 does 2 000. so we got over a 10 overclock going right now on this GPU let's go ahead and run time spy and see if it's stable at this plus 250 500 OC okay so looking at our temps and our performance levels and our GPU boost clock look at how much higher our GPU is boosting um you know so the window on the right over here is the Vantage the Vantage CPU so that's what the Vantage GPU overclock default being applied 150 plus to the ooc it seemed like we were pulling just a little bit less wattage there wow so we managed to get 1 208 additional points over dock overclock or like the the Vantage GPU overclock with our additional OC here that's quite delicious I don't think our CPU score really went up yeah it actually went down 40 points which is very interesting so 23 208 minus so our initial score was 21 965. so we gained 12 1 243 for our overclock um if we divide that by our original score 5.6 performance gain that's our initial straight time spy performance gains our CPU performance gain was 12.6 percent from undervolting our GPU performance gain with time spy 5.6 look at our look at our look at 940 millivolts our GPU is not at 100 utilization and we crashed again so this is definitely I think the reason why like it's boosting so high with our core voltage and our clock speed 25.95 is in insane the node that we want to really Target the highest realistic ones probably 850 raise this sucker up all right we're gonna take this sucker up to 22 plus 220. let's try plus 220. I think this is going to provide nice stability we're also going to lower our memory overclock we'll do 400 all right so now we're at 850. our boost clock is 22.80 our wattage also dropped from 150 to 125 which is nice cooler temps look at our temps 53 degrees Jiminy Christmas that is such good temps we were being frame capped right now we're hitting Max frames right now what we've got going on is an undervolt because we were doing 940. stock voltage is 940. we've got an under volt and an overclock being applied this is giving us Max GPU performance reducing our wattage pull giving us lower temperatures at the same time all right looking at our our one percent lows and overall FPS it's very similar and the close to 300s basically Max FPS they it boosts around between 2100 and 50 to 23.50 for our boost clocks our CPU is about the same wattage but look at our look at our CPU clock speed 4.9 to 5 gigahertz on the new one over here uh with the under volt being applied to the CPU clock speed here 4.4 so our CPU undervolt is really amping our CPU clock speed in game with Max fans and the laptop cooler enabled our CPU temp has dropped about 13 degrees our GPU temp has dropped 12 degrees so that's phenomenal I guess we should probably do no under volt first and then do an undervolt all right so right now we should have no under volt being applied okay so this is going to be our stock run 130 FPS 132 our GPU boost clock we're not GPU bound we're CPU bound right now we're doing 102 watts to that CPU 4.8 gigahertz 5.1 4.8 132.83 for our our actual performance number so we're going to apply GPU overclock profile 2 which is our curve overclock which has the flat curve and then in throttle stop we're going to switch to our performance under volts we are under volted and overclocked now 140 and higher one percent lows at 86 right now so that gave us a approximately 9 FPS gain and our one percent lows was just like a few FPS but that's a nice quick overclock gain right uh right here we're doing 141. disable our GPU overclocked is our GPU overclock wow our GPU overclock didn't really affect things very much we're actually getting slightly higher FPS now because it's gonna it's let we're letting the GPU voltage ran run and we're getting higher clock speeds slightly 2340 on our GPU core clock so yeah our our clocks our GPU is basically making no difference our GPU makes no difference here our CPU is the one that matters look at our wattage pull only 86 Watts right now on our GPU or sorry our CPU we were doing a hundred and something Watts before before we undervolted so right now we're doing 85 let's open throttle stop up again let's remove our under volt we jump from 85 approximate Watts now to over 103 Watts on that CPU by undervolting inside of a game we're seeing massive wattage reduction which is going to reduce our temperatures from undervolting while at the same time giving us about the same levels of performance in this scenario so this is different than cinebench R23 under volting inside of a game giving us reduced wattage pull well potentially also increasing our FPS so let's say around 70 to 72 for our temps let's apply the under volt we're only doing 84 Watts similar clock speed on the CPU but look at our temps our temps are coming down quickly a five degree drop in about 15 seconds very impressive very similar levels of FPS this kind of performance gain is might be really hard to notice you know and in this scenario we may not see much performance gain because we're using that curve and because we're not letting the GPU go to that Max potential voltage of 940 millivolts so the original test got 524 are overclock under volt result 544 so we got 20 FPS game for free interesting looking at our GPU boost clock I'm not sure that we're going to see much performance gain here look at our boost clock we're only hitting 21.45 right now we're not locking to the 850. so this tells me that we may get better performance using a more standard overclock here so right now we're hitting the high wattage our millivolts there's only 835 we're not hitting the consistent 850 where we want to be because it just must be it must be pulling too much power must be too GPU bound right now in this scenario I'm guessing we can get a higher average boost clock by switching from this curve here over to a plus 240. so what we can do as well we could we could go to our curve here and we can select our nodes what we can do is we can move all of our nodes up a little bit higher let's say to 2200 or 22.70 our voltage is still not able to maintain we're still dropping all the way down the curve further down than we really want which means that our curve is just too aggressive and if so if we actually look at our if we look at our curve editor when the game is running our node is falling down the curve here because it's too aggressive the GPU cannot maintain it with the current V bios so the currently active node appears to be around this range all right and our average boost clock is only 21.60 I'm not sure that we're going to be able to get at our full performance out of this type of curve over clock so go into this standard offset overclock I think this is going to be our best bet so now look at us 22.35 that appears to be an improvement almost for sure do a run through let's go ahead and split screen our results wow that is some performance game wow oh my God all right 129 FPS versus 115. and look at our one percent low gain from 43 up to 105. doubled our 1 lows more than doubled I don't know that seems a bit weird honestly but uh our boost clock like look at this look at this same moment we were doing 2200 right now on our boost clock versus only 2020 uh 2010. I don't know if that's just a temporary dip in the Boost clock or or what but that's a big difference and a 14 FPS gain on 115 FPS that's like a 11 12 performance game in this game with much higher one percent lows that those higher one percent lows I mean I would probably attribute the one percent low gain to the under volt look at the CPU clock speed right now we're jumping between 4.8 and 5 gigahertz 5.2 gigahertz on the CPU and that means our clock speed on the CPU is just much much higher and that is giving us a huge gain to our one percent lows which is going to really improve the perceived smoothness of the game so let's like I want to look at this 3.7 3.9 gigahertz 3.8 gigahertz yeah our CPU is being knee capped basically before we had about a thousand a thousand megahertz gain in our CPU clock speed at the same wattage which is uh just really goes to show the advantage of undervolting that's insane and the one percent low gains are just absolutely insane as well so uh that is probably our biggest gain so far today in gaming performance temperatures are also six degrees cooler on the CPU with the under volt and the laptop cooler and Max fans and eight degrees cooler on the GPU so another huge not only are we getting way more performance we're also getting much lower temperatures in God of War the text over here on the right is actually incorrect because we're just doing a plus 240 offset right now for our our GPU boost so keep that in mind appears to be too much at two plus 240. in in the games that are CPU bound it ends up being too much so I think we gotta we gotta drop our offset to plus 220 and see if we can get better stability for our general offset gaming okay so we're gonna go down to 220 and we're still locked at 885. so looking at our boost clock our GPU boost clock is going above that of the old the old one on the right but our actual FPS number appears to be lower look at our CPU our CPU clock speed is higher our GPU clock speed is much higher one percent lows are about the same our FPS according to MSI afterburner is lower though so that might just be cyberpunk having gone through the update and updated drivers and all that I don't know all right so we got 125 before in the past and we got 120 today so I think what we're gonna have to do do is run this again by disabling our overclocks to see what our performance is let's go back to the settings and re-run it again but let's turn off our overclock yeah so we are definitely hitting lower FPS than we were with the overclock down to I think we were doing like 115 ish right now and now we're doing 109 without an overclock and under volt definitely a nice Improvement for CPU and GPU performance looking at our CPU wattage doing over 90 Watts right now that's obviously giving us great CPU performance but I'm pretty sure we were pulling a lot less wattage when we have the undervolt enabled I'm going to show you that like undervolting your CPU in gaming workloads it really does reduce your wattage pull and temperatures okay so 112 with no overclock no under under volt we got an 8 FPS gain approximately by applying in the undervolt and overclock which is quite nice all right so let's just do this test twice we'll do no overclock here initially no overclock no under volt this is our going to be our our stock test we got a nice GPU boost clock but that's because we're CPU bound right now only 77 GPU utilization our one percent lows are pretty good at 44. 105 FPS average right now 104 46. we're going to apply our undervolt to the CPU right there we'll do our plus to 2500c okay I'm gonna I'm gonna lock it right there okay so I locked it to 890. there's a part of me that wants to just try the the straight 220 with no no frame cat or no voltage under volt let's just see if it's stable or not and what FPS we get all right well might crash 120 so far keep in mind we were doing 104 right was our average before so we went from 104 fps to 111 we also increased our one percent lows by a few FPS as well so that's a 7 FPS gain so about a six percent performance gain there let's try doing the uh let's see if let's see if doing our curve reduces our performance at all let's see what we get now our GPU under volt and overclock so we're we're not letting the GPU run as high and as hot as possible but the CPU bound game performance appears to be reduced compared to stock or very similar to stock GPU performance okay so that gives you an idea if you limit your if you do this hole uh on the curve editor your CPU bound game performance will actually be impacted right we just lost 7 FPS because we flattened the curve here at the end that's super interesting so that's why I'm thinking doing something like plus 220 if this is stable at plus 220 maybe plus 210 this is going to give us a more consistent OC overall and if you really need to prevent send it from running too high maybe just say limiting it to 2500 might be the right thing so this is uh locking it to 920 millivolts so that way the GPU does not boost above 2500 total clock speed 128 versus 136 notice our GPU is pulling more wattage our CPU is clocking nearly a thousand megahertz faster including 20 watts higher now that we're in custom mode I mean we're seeing some really nice performance gains here and notice our temps are also lower laptop cooler maximum fans you know the thing is like even though we're pulling more wattage on that CPU we're still hitting excellent overall performance wow the one percent lows are so crappy in Dead Space it still looks smooth and it's just and the frame time graph looks crazy but like it's not stuttering on my screen and you can see on the live stream it looks smooth but yeah the one time one percent lows are only 27 FPS right now which are really low so right now 133 FPS versus 123 better average by about 11 FPS gain there our one percent lows are almost exactly the same 30 30 FPS for a one percent lows 29 for lows with the overclock so one percent lows were not really affected much just slightly worse one at one FPS is not much of a difference but an 11 FPS gain overall so that's excellent then of course our temps dropped on both the CPU and the GPU because of the laptop cooler despite the fact that we're running 20 watts hotter on the uh the legion Pro 7i so very interesting we are right now being at least partially CPU bound because our GPU utilization only 83 89 93 so we are being CPU bound to at least to a to a certain degree which shows you that by undervolting the CPU and overclocking the GPU you get the best combo of performance in this type of game with just one or just the other you probably wouldn't see the same level of performance you're probably getting some performance gain from both both of those things being done to the CPU okay so uh out the gate we're seeing some performance gains 146 FPS versus 152 151 versus 144 looking at our temperatures we've dropped about eight to nine degrees on the CPU and about 10 degrees on the GPU notice our wattage pole being a little higher on that GPU our core clocks on the GPU not being too much different just being slightly higher the big difference being that CPU geez CPU is not only pulling more wattage but it's also pulling much higher core clocks 149 for our FPS in the past versus 161. we ended up with uh 12 almost 13 FPS gain and that is of course at 150 is going to translate to only about an eight percent performance gain from overclocking and under volting and I gotta say I think the CPU is probably the one of the big areas of gains notice our our 1 low 142 for our men's 127 for our men in the past so we had a 15 FPS gain for our one percent lows under volting in particular is probably the thing that helped us with that pushing a higher CPU core clock is going to help with our Min FPS there we are 131 132 versus 116 right now our CPU Boost from the undervolt overclock and custom fan mode a thousand to 1200 megahertz faster 10 degrees cooler 12 on the 10 degrees cooler on the CPU 12 degrees cooler on the GPU our boost clock on the GPU is a hundred megahertz more than the Vantage overclock 14 average FPS increase and 63 FPS increase for our one percent lows wow and let's go over the final settings that I think I would recommend the most for overclocking the Lenovo Legion Pro 7i inside of here my my undervault settings has my CPU core at -140 cash at -115 and my CPU e core is at minus 90. when you when you do your your custom mode inside of here we have our power sliders slid over to the right this is just letting our CPU pull more juice which the fact that it's pulling more juice we saw like a thousand to twelve hundred increase to our CPU core clocks in games which is definitely I think related to our one percent low improvements so it's a combination of undervolting the CPU also letting the CPU just run in this custom mode and then also overclocking in MSI afterburner or you could do it in the Vantage OC and if it's easier and more stable you could just do a 200 400 OC in the Vantage OC check box button and you don't have to worry about all this other stuff and you probably are not going to crash but if you want to be able to push past that limit you're going to have to use something like afterburner and if you want to be able to prevent crashes beyond that this is what we ended up finding to be the most stable plus 220 500 and then we locked our voltage node to 920 at 2500 this prevents our GPU clock from running rampant and going too high causing a crash from going up to the 2600 clock speed range in those CPU bound games because when this when the GPU is not really that engaged it'll just ramp the clock as high as it can go and then it goes too fast and it trips and stumbles and crashes so this allows us to do a slightly higher OC without crashing but otherwise you could probably go 200 without having to lock it here and you'd be you probably have very similar result but just slightly less performance yeah and in certain games it was okay to let this run but in other games it wasn't so that's why if you want more stability I would use Ctrl L to lock it around the 920. millivolt range but maybe your silicon is better than mine and it won't crash anyway without locking it maybe you can go to 240 250 without crashing or maybe 200 crashes you or maybe 180 crashes you GPU overclocking is a per CPU chip solution and it's going to be individual to each laptop so your results will vary compared to the results that we got today I think a lot of laptops will be able to overclock and over under a little bit better than this one that we did today and some of them will be worse so just keep that in mind that your mileage will vary see you guys in the next one [Applause] [Applause]

Channel: GizmoSlipTech

Views: 23,318

Keywords: Legion Pro 7i, optimization guide, overclocking, undervolt, how to undervolt, i9-13900hx, rtx 4090

Id: KXSXc1J9Rco

Length: 56min 40sec (3400 seconds)

Published: Tue Aug 08 2023