M.2 vs NVME: What's the difference?

alright let's just take a minute to talk about internal storage drive interfaces because there seems to be a lot of confusion about it right now and there always has been quite frankly when I first started we were using an interface called RL L or M FM or SCSI which we called scuzzy yeah scuzzy with a straight face it still exists today SAS is that it's called serial Attached scuzzy but that's primarily in the enterprise most home users wouldn't deal with that but we've always had these words that describe the interface that connects your storage drive to the motherboard or to the controller the hard drive controller and then they came out with IDE the integrated Drive electronics and the IDE cable you might have seen these in the past they look like this this is a 40 pin connector and this one has 80 wires you know they originally had 40 wires and then what they did later on is they added 40 more as a ground in between each cable to prevent any data crosstalk or bleed over and the way this would work is you would plug one end into the motherboard this blue end here and then you had these other two connectors to plug into up to two hard drives right so you could have a master in a slave and the hard drive would have a little plastic jumper we call it a jumper and you just move it to the master or slave position and if you didn't set that up right your drive didn't work and your system always booted to the master Drive that's the way it worked and this is a cabling nightmare it wasn't really a whole lot you could do other than some clever origami people were doing with very time consuming if you think cabling is difficult today you should have been doing it 15 20 years ago you'll have a new appreciation for just how easily cable management is compared to how it was you know people would round these cables or you could buy them already rounded and they still look terrible and we're very difficult to cable manage and there was this debate about whether or not this thing blocked your air flow now this technology was called pata or parallel ata and the technology we use today of course is SATA SATA or serial ata now parallel is a much more efficient way of transferring de always more efficient than cereal however for whatever reason the tech the engineers who developed this serial ata figured out how to make it go faster and invested their time and money into making it go faster than the current parallel technology that we had and so they came out with SATA version one or saddle 150 that means that we transfer data up to 150 megabytes per second they doubled that with SATA to where it would transfer data up to 300 megabytes per second and then once again doubled it to 600 megabytes per second with our current generation SATA 3 and then they said oh we can't go any faster than this this is as fast as the technology will allow us this is we can't exceed this without changing the technology so they introduced the m-dot to drive which was a small step making it compatible with SATA so a standard m2 Drive transfers data no faster no better no more efficiently because it still is limited by the drive interface which is SATA so then it came out with the nvme the non-volatile memory express which requires PCIe times 4 so what is the times forming times 4 means they return back to parallel but it's a it's a parallel serial connection so if if you had one serial connection at 600 megabytes per second what happens if you have four of them then you have 2400 megabytes per second right so it's a serial parallel connection and they've called it PCIe times for envy me nvm e are you confused yet Intel's got a new technology called obtain which makes which takes that now to the next level however we're not even talking about octane here because there's really nothing to talk about until I have it in my hands and I can experience it personally so I'm just making this video so you can tell the difference between a normal M to drive and an nvme m dot to drive just by looking at them and why you should care oh and why am I wearing this shirt this shirt is in response to the tons of emails I get asking me if I'm a gamer oh my a gamer I'm the og I'm the original gamer all right let's start with what the drives look like here is a stick of gum an m dot to drive and an nvme m dot to drive now to the untrained eye these all may look alike although the m dot - an nvme driver quite a bit crunchy er than the gum and less tasty don't advise eating that but if you look closely at the ends the ends are different so as demonstrated in this drawing the m dot 2 drive has two slots in it you'll see one slot is six pins from the left and the other slot is five pins from the right then if we look at the nvme drive on the right side of the photograph you'll see it has one pin that is also five pins from the right now here's a photograph that of the actual m dot - and that m dot - drive can perform at the maximum satis piet which is in reality about 550 megabytes per second and you'll see the slots on the photograph match up with the slots in the diagram above it looking at the nvme drive again here's a close-up shot and you're looking at as much as 2,100 I'm sorry as little as 2,100 and as much as I don't even know what the limit is as the technology keeps improving you know Intel's got this obtained technology that is talking about doubling or tripling that speed so the nvme I actually photographed here will do 2600 megabytes per second but I just put 2100 plus because it just depends on a model of nvme drive that you purchase now here's the socket for an MDOT to drive and you'll see there's only one notch on the socket on the left that's gonna line up with the notch in the diagram below on the left that's six pins wide and the notch on the right isn't used but that notch on the left is very important because it's gonna prevent you from plugging an nvme drive in there because an nvme drive won't work in the nvme drive as you can see on the picture on the right only has the slot the right side so does that mean you can plug an MDOT to drive into an nvme socket yes you can will it work well that depends on the motherboard some other boards only support MDOT - and of course they're only going to have the the notch on the left other motherboards support nvme and in that - and some nvme only and some do both like this Asus z2 70 mark - which has a nvm II slot only here on the top and in nvm II or MDOT - here on the bottom here's the MDOT - drive plugged in to that lower slot on that motherboard the z2 70 and here's the nbme drive plugged into the same socket they will both work however you may need to tell the motherboard which one you've got plugged in so on this asus motherboard we would fire it up and we'd go into the BIOS and choose advanced mode here and then up here on the top we're gonna go to advanced and scroll down to onboard devices configuration and if we scroll down a little further you'll see the MDOT 2-1 right because ones - one ones - - configuration mode and it's set to auto but sometimes auto mode doesn't auto detect the drive properly so you doesn't hurt to come in here and set it manually to either SATA mode or PCIe mode you wouldn't want to put in an nvme drive in there and not check your bios to ensure that for whatever reason it wasn't set to SATA mode because it will work in SATA mode at 1/4 of its speed and if you've never built a computer before you don't know the difference you'll never know you'll just think it's blazingly fast at 550 so imagine how you're gonna feel it when you actually configure it properly and you're getting 2600 out of it alright so I hope this clears up any confusion you had about m dot 2 versus nvme I hope I didn't make you more confused but basically you want that nvme if you want high-performance and that's pretty much what it amounts to your CPU and the rest of your computer is able to perform much much better by simply giving it faster at most people's computers the thing that's slowing their computer up the most is their storage device hope you enjoyed the video and I'll see you next time bye for now

Channel: CareyHolzman

Views: 2,880,822

Rating: 4.7979412 out of 5

Keywords: Carey, Holzman, m2, m.2, NVME, Samsung, 850, 950, 850 EVO, 960 EVO, 960 PRO, 850 PRO, PCI-E, pcie, hard drive, solid state drive, RLL, MFM, IDE, SATA, PATA, data, interface, integrated drive electronics, parallel, serial, connections, cables, cabling, difference, how to, DIY, easy, simple, teach, lesson, fun, Galaga, gaming, gamer, PC, personal computer, performance, optimize, how can i make my computer faster?, fast, speed, quick, amazing, outrageous, technology, storage, transfer rate, MB/s, fastest

Id: fJCHx7mZEKo

Length: 9min 8sec (548 seconds)

Published: Thu Jan 26 2017