Low Profile Cooling the 7800X3D... in the Fractal Terra!

[Music] thank you [Music] [Music] welcome to machine some more the 7800x 3D it's one of the best gaming CPUs on the market right now one thing special about this CPU is that compared to most of its high performing gaming contemporaries such as the Intel 13600k or 13700k it's uh that it's Peak power draw is very very low when all cores are heavily loaded you'll see around 75 to 80 Watts tops and for gaming somewhere around 40 Watts depending on utilization so that means in theory this is a great CPU to use especially where cooling is limited now even if it's just gaming the aforementioned 13600k and 13 700k they use upwards of 90 100 plus Watts respectively the low power draw doesn't mean that the 7800 x3d is a one-trick pony either for multi-core processes their performance is just a little bit shy of the 7700x but it seemingly gets along by sipping power it's got a huge L3 cache of 96 megabytes compared to 32 on that 7700x so for applications that rely heavily on that especially gaming and it's got a huge leg up so lots going for this chip I actually really really like this one it's very efficient I mean the typical V core on this thing is around 1.05 volts or so and if you're doing a gaming build in a case like the fractal Terra which I recently reviewed and you're limited to smaller low profile air coolers it's definitely one worth considering interestingly AMD rates this one as 120 watt TDP part and given that it's going to be rare that this CPU draws Beyond 80 Watts it's a very cautious and also a curious rating uh the 7700x is rated at 105 Watts TDP and that corresponds to its 140 Watts or so of power draw and these chips they're very dense though and that means that the transfer of the heat from the single CCD in the 7800x3d to the IHS and then to the heatsink or your coolers Coldplay it's very critical so I believe that with knowledge of how thermally dense this design is AMD has rated it according to that and also this does have a slightly lower throttle temp of 89 degrees so today we'll take a look at a few low profile coolers for this CPU tested in the fractal term of course the objective here isn't necessarily to say if a single cooler is the absolute best one for this CPU in this case I haven't tested every single one out there here but the point is just to give you a little bit of a Roundup give you an idea of the performance trade-offs that you might have to consider vis-a-vis the space that you have to give your cooler as you might know from the review the Tara like the formed t1v2 where we first saw this design has the ability to customize the space between the CPU or the GPU chamber so you might have to make some concessions on the motherboard side if you're thinking about running a bigger card likewise if you run a smaller card you can have more CPU cooling so three coolers today one with two configurations the first one is the one I did the initial review with it's the Scythe big shuriken three this is their latest revision the revision B 67 millimeters tall for this version with the stock Casey Flex slim 120 millimeter fan highlight to this one you're pretty much unlimited when it comes to Ram height the heatsink footprint is well designed in that regard that's a really solid and actually very popular cool cooler but it's hard to find right now not sure why that is another cooler here is ID coolings is-55 this one is 57 millimeters tall you got five heat pipes that come stock with a slim 120 millimeter fan that you could upgrade it to a 25 millimeter fan if you have space so there is a configuration where you won't run into RAM interference with this cooler but not with the test board today which is the MSI b650i the rear i o heatsink obstructed it and I'd imagine that many boards nowadays won't have that issue because this one is not particularly muscular in that department but that does mean that the cooler cover of my Ram kit it's a 35 millimeter tall Ram kit and the cooler respect were 33 millimeters in that position but turned out to be fine last one of the trio is noctus alt hole of ghost this one is an interesting cooler it's a special edition for the ghost S1 at least that's how it was designed originally that comes with a 92 millimeter nfb9 the use of that fan underneath the heatsink means better compatibility with tall RAM and motherboard heatsinks and this one slots and adds 66 millimeters tall I do have noctua's new offset mounting bar so I was able to test the l12 with these these offset the cooler downwards by seven millimeters in order to better align with the location of the ryzen 7000 ccds the 7800x 3D still has its single CCD in the same lower location so this should still be somewhat helpful there I will link to the video where I test these out just to give you an idea as well if you're curious for am5 this cooler can mount in different orientation since it comes with different Hardware so as long as your case and your board allows it you can rotate it how you see fit with the 92 millimeter fan I was able to run it like this where the heat fin tips exit the back of the case adjacent to the motherboard just so happens that the Terra has a cut out there and you can also rotate the cooler using the other mounting bars that I had you can position it with the heat fin tips pointing towards the expansion slot one thing to note is usually it's not recommended to have the heat pipe bends at the top of the case so in a build where the motherboard is oriented right side up this really wouldn't be the best way to do it but in this sandwich the board is upside down anyway so it turns out to be fine in this orientation I could fit 120 millimeter slim knot to a fan underneath the heatsink the clearance is still decent here between the RAM and the side our rear i o heat sink I was able to use these seven millimeter offset position for the cooler in both orientations and that you know can range from not being helpful to pretty significant a 120 millimeter fan like this a 12 by 15 from not to is not standard for the l12 go so if you wanted to go that route you do have to request a set of fan clips and Supply your own fan but this is going to be a lot more cooling than that 92 millimeter fan and basically brings thermal performance in line with the taller slightly taller a 70 millimeter l12s which comes with this fan if that one fits with your GPU thickness it's also a great cooler to consider so fantabies are important here but not as much as the quality of the heatsink we're not talking about a huge amount of power that the chip is drawing that IHS contact that's going to be a lot more important so I'm just going to run these fans at 100 percent no down to noise levels for each of these configurations big shuriken 3 does have an odd noise from turbulence in this case and it is measurable so it's a little bit higher than I typically expect from this cooler just keep that in mind that's why this is kind of an outlier the first test here maybe not a huge priority for a gaming build but we do have to consider the multi-core performance because that's the worst case thermal scenario you can expect with this CPU we'll start at stock PBO without any enhancements some boards might drive the CPU super hard out of the box others will be a little bit more gentle this one tends to be on that gentle side the setting the highest I've seen the MSI b650i board Drive the CPU is 4400 megahertz big Circuit 3 runs the coolest here followed by the l12 with the 120 millimeter fan so the temps are a bit less meaningful than running on PBO because it'll keep trying to push more power until it gets close to throttle temp again this sport is pretty gentle but nonetheless these are all still staying under the throttle temp of 89 degrees one thing we can look at is the Boost frequencies and if you can make it out on the graph the 120 millimeter fan equipped l12 and the big Shirk and three they do Boost the highest as the chip hits equilibrium the clocks are mostly around 4 300 to 43 50 megahertz so how does that translate to render times for the CPU render The l12 Ghost and the big shuriken 3 they are the fastest here now putting this CPU on an AIO or on a custom Loop would bring out the best in it just to give you an idea of the performance you are giving up trade-off with the CPU in this configuration is at least 10 seconds not to mention that the fans on the custom Loop they're running in audibly at 900 RPM for that particular run I mean it's not really drawing that much power so you don't need to vent off that much heat from the radiator right so uh you know quietness there it's a huge difference I do recommend doing some tuning though and I think that's how these CPUs are intended to be run most of you should be able to float a boost clock offset along with some level of negative curve Optimizer offset for the next few tests this chip is run with a raised 200 megahertz you just set a boost clock override of 200 megahertz it doesn't mean that it will go that much more necessarily it's just a Max that you configure but you will also need to optimize your voltage and that's where your mileage may vary depending on Silicon quality but for this CPU I'm able to get a minus 30 on all cores for the curve Optimizer setting so in simple terms here you're telling the CPU hey can you try to run a little bit faster on just a little bit more power if I give that to you here that translates to a Delta of about three watts of power but at least this one did actually run about uh 200 megahertz faster so temps are a bit higher but we're getting closer to the throttle temps with some of these but it's still okay at 25 degree ambient the highest that you should see this chip boost up to for a multi-core process is around 4 700 megahertz to 4 800 megahertz here we're not able to sustain 4 700 megahertz but that drop off isn't too bad about 4 600 megahertz in the long run for most of these the the 92 millimeter fan for the l12 does hurt its performance somewhat and it can only hit 4 500 megahertz sustained I noticed that the performance of the l12 ghost was still better for most modes of CPU operation it's not a huge gap but also keep in mind the 92 millimeter equipped l12 is the quietest town of the bunch here okay gaming the thermal load is really really gentle with the 7800x 3D it's basically around 40 Watts so thermals you know fan speeds they're not going to be the primary concern here with gaming all these temps are very much manageable I did keep the fans at Max for consistency but you really should be fine keeping the fans somewhere around 60 70 Max during gaming based on the temperature you're going to get interestingly here the is-55 it does really really well and it's one of the coolest overall again with PBO the temps that are less meaningful for this type of testing but they're still working worth considering I've also noticed that the single core boost behavior of the 7800x 3D is very sporadic it's not too great for a comparison here as probably the ugliest graph that I've ever made but just to smooth out the analysis into something we can use I went ahead and just averaged out the Boost clocks for the last minute of the 15 minute 1440p gaming test that just kind of gives us a rough idea of how things shake out so the l12 with the 120 millimeter fan it clocks the highest the is-55 I'm actually you know based on those temps we saw earlier it does pretty well okay so based on this I hope that gives you an idea how well these lower profile coolers work with these 7800 axis 3D I say overall the performance is more than acceptable with any of these this 7800x3 is primarily marketed as a gaming CPU so the ultimate multi-core performance perhaps isn't that important or perhaps it's not even a big deal to you Ryan if you have the room in the case you'll told ghosts with an upgraded 120 millimeter fan definitely seems to be getting the most out of the chip if you have 70 millimeters you can just go ahead and get the l12s and equip it in low profile mode with the fan underneath that's going to be the more expedient and cost-effective route to take although the increased proximity there to the outer panels we have seen there is the potential for more more noise due to turbulence the big shuriken 3 had a pretty severe issue there the l12 goes at 66 millimeters didn't have any issue some of that has to do with how the heatsink diffuses the air but there's always going to be a possibility with how the grooves are cut out on the fractal terra's side panel what is reassuring to me is that if you went with a GPU with a bigger cooler and you only have 57 millimeters of space left for a CPU cooling the iso time it seems like it's going to work absolutely fine and it performed really really well for the game test so there you have it if you have been considering 7800x3 for the fractal Terra just do it it's going to work it's so efficient so as long as you get a good quality heat sink you should be golden or super super efficient I love the chip so links down below give it a like And subscribe if you found the testing and content helpful thanks for watching [Music] foreign

Channel: Machines & More

Views: 71,959

Keywords: noctua u12s, amd ryzen, ryzen, mini-itx, small form factor, SFF, computer building, computer, custom build, noctua, amd 5700xt, radeon 5700xt, evga sfx gm, mitx case, chromax, noctua u12a, Ryzen 7, 3700x, ryzen 3700x, CM NR200P, NR200, CoolerMaster NR200, Coolermaster NR200P, NCASE M1, Cooler Master NR200, NR200P, AIO Cooling, Water Cooling, Noctua L12S, Air Cooling, Gaming PC, SFF case, Nvidia 3080, nvida 3080, nvdia 3080, 3070, nvidia 3090, 3090 GPU, 3080 gpu

Id: -4aazp2IkGo

Length: 14min 13sec (853 seconds)

Published: Fri Sep 29 2023