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now the whole industry has been really excited about how AMD's 3rd gen ryzen

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processors have finally caught up to Intel in key consumer applications like

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gaming but in the background AMD has

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been quietly not just catching up to Intel but surpassing them by an

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incredible margin with their second generation of epic

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server processors and in my hands i have the epic rom 7742

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a 64 core

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128 thread eight channel memory absolute

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monster of a CPU welcome to

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today's episode of holy sh

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where we are gonna take this thing for a little test drive guys the full review

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will come make sure you're subscribed so you don't miss that but today is going

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to be more about the stuff that AMD didn't want to see us a processor

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because they knew we were gonna do like running cinebenching games and all that

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kind of fun stuff speaking of fun this segue to our

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sponsor glasswire with glasswire you can see what's going in and out of your pc

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over its network connection so you can diagnose if there's any suspicious apps

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behaving badly so check it out and get 25 off using offer code Linus at the

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link in the video description

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so while we get set up here i want to fill you guys in on some of what's special about AMD's epic roam platform

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so as i mentioned before this is a 77 42

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with 64 cores and 128 threads but

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contrary to what you might think if your only CPU experience is with Intel

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processors even though it has 64 cores in it its

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225 watt TDP is not

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actually that much higher than Intel's

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top of the line server chips which only have a mirror

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it's hard to wrap my brain around saying that a mere 28 course on board and the

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unfairness of this comparison doesn't end at the core counts and the thermals

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at the top end AMD boasts nearly seven

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times the cash four times the maximum memory capacity two extra memory

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channels pci express gen four which is

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double the speed of gen three not to mention that they've got nearly three

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times as many lanes on board and

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they come in at four thousand dollars less and that's just at

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the top end up and down the stack

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Intel's xeon scalable processors are

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under attack from AMD epic rome and it

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gets better than that so a little over 15 years ago AMD made a huge step

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forward in computer architecture by taking the memory controller off of the

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north bridge that that second chipset that motherboards used to have on them and

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integrating it into the CPU now

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they've done themselves one further by taking nearly everything that still

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existed whether you want to call it a a chipset or an i o hub or whatever else

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but that still existed on a separate ship on the motherboard and integrated

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it right into the CPU yes even all those

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pci express lanes that is the secret

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sauce that makes epic so modular and scalable and flexible it means that

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whether we're talking about a motherboard like this one that super micro very kindly sent over to us along

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with the CPU for us to do this preliminary testing or whether you're

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talking about a fully integrated server that takes all those pci express lanes

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and wires them up directly to NVMe drives all across the front of the thing

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instead of using you know splitters and switches and all that kind of nonsense

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AMD doesn't have to go head-to-head with

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Intel in terms of raw CPU performance

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that's not to say that they can't actually the CPU performance we're

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expecting will be very good but it means

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that the solution is just capable of stuff that Intel flat

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out cannot do right now so why don't we fire it up

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it's like mind-blowing that we have 64

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processing cores and a northbridge effectively

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sitting under a single Noctua cooler

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getting all hot and bothered let me take off my sweater nice sweater

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right lct store.com also this shirt

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so for lulls more than anything else we're going to kick things off with cinebench r15 a benchmark that everyone

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knows is sort of light for modern multi-core

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processors never mind modern epic

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look at all those threads it's ridiculous

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it's so dumb and this is cool only two pneuma domains

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and if you're nerdy enough you'll know why that's really cool it is incredibly

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hard to do that with this many cores

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AMD has figured out a way even in their dual or multi-socket configurations to

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dramatically reduce the number of pneuma domains that are required for these

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massive core counts something that Intel actually lorded over them just last

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generation so no more anticipation let's do it

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and it's gone

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8450 in cinebench r15

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on a single CPU it's not even running

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long enough to load up the the to get hot the fan didn't even spin up

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so obviously we're gonna need something a little heavier let's step up to cinebench r20 which is based on a much

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more modern version of maxon cinema 4d

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this thing wrecks r20 the way that high-end desktop Intel

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chips wreck r15 like

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boom this just beat a 48 core configuration

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of dual xeon platinum 8168s

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so more perspective here each of those chips is within striking

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distance of the cost of a single

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7742 and that's ignoring that it takes two of

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them to not even have the same performance not to mention all the

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memory channels and pci express lanes and blah blah blah all that other stuff

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it's madness and things get a little bit more crazy here now the eagle-eyed among

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you probably noticed that we're only running four memory sticks in this

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motherboard right now the reason is that

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at least in our early testing we were having trouble getting unbuffered ecc

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memory to run in it we are also going to be significantly

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upgrading the memory capacity of our system here each of these

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is a 32 Gigabyte dim

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so that will be 256 gigs of RAM so there it is 256 gigs

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of RAM and this hardware is too new to have the readout for how many memory

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channels and what speed it's running at and all that noise so i guess we'll have to fire up like

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hw info yeah okay cool let's do that all right so we're running at 26.66

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which happens to be the rated speed of our memory we've got our rtx 2080 ti

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which is totally inappropriate everything here is looking

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pretty right all right let's try cinebench r20 again

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now to be clear i'm not expecting a huge difference in performance going from

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quad to eight channel memory in this particular workload

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uh there are very few if any single user

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use cases where you're really going to get a benefit from that much memory

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bandwidth it's more for like actual legitimate server use and as expected

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our score is pretty darn similar if you got eight channels y'all might as well

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use them on the subject of single user workloads though here's one that can

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really benefit from extra CPU power let's go ahead and do the classic bmw

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blender render and see just how much of our CPU we can

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load up here wow

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even blender which is traditionally a

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very multi-threaded workload cannot take

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advantage of all 128 of our threads

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maxing out at around 80 85 of them or so

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it's only using half of them is blender numa aware that's fine we

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have a solution to unlock this fully armed and operational

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battle station we're just going to run two instances of

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the render at the same time

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there it is so we are turboing to just

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shy of 2.5 gigahertz we are seeing

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100 usage of all 64 of our cores 128

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threads and i am willing to bet that this thing is kicking out some heat i

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needed to dry my hair cool

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the fan's not really ramping up okay these fins are getting pretty

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toasty is this fan going to ramp up at some point i might not be on the right header

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supermicro doesn't label their headers particularly clearly

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we could just try a different one oops

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so impressively it still managed to finish while running two blender

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instances simultaneously in a minute and 14 seconds apiece all

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right so now that we've got our fan figured out properly let's go ahead and have a look at what we can expect in

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terms of CPU temperatures under a very heavy load so my friends that is 128

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instances of prime95 i've never seen anything quite like that

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and let's see what that does to our poor

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7742 i wonder if it detects this as a power virus

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every thread is only running at 93 94

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so this isn't working and we think the CPU might be detecting prime95 as a

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so-called power virus because it's even throttling below its base speed so we're

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going to go ahead and kill that all right so this is more like it now we're

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hitting every core for all it's worth we're actually managing to turbo a

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little above our base clock to 2.5 gigahertz and

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shockingly temperatures are not even just

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reasonable they're downright under control we're actually only at about 50

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degrees on the CPU now that our fan

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turns up when there's heat going into the heatsink

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now that might seem unintuitive having 64 cores running at a mere

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up to 52 degrees when you've got like an eight

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core Intel processor like a 9900k

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that'll easily run at you know 70 plus

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and it's only eight cores but in this case

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epic's size and the lower frequency of its cores means that not only are the

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cores more spread out making it easier to transfer heat into the heatsink but

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because they're running at a lower frequency and a lower voltage it means

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they're running much more efficiently pushing for that last little bit of

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frequency requires a lot more power to be pumped through the chip and therefore

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a lot more waste heat that dual gooseberry render though but enough of

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all that it's time to answer the question you've all been waiting for can

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it run crisis okay then 720p it is but we're gonna crank

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everything to very high very high is grayed out also motion blur sucks

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anytime now if this takes any longer i'm gonna have a mid-life crisis

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that is pretty slow

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wait a minute Anthony is this the CPU renderer version

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yeah that's why i told you not to run over 720p

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oh wow i'm surprised this is like running at all then

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yeah i had everything on the blow and it's actually semi-playable on low

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okay why don't we try that then i friggin figures i knew you were you had

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some crazy trick up your sleeve alright so i

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turned the in-game settings down to low and this is pretty darn impressive but

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the best is yet to come so in order to

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get this it's using a renderer called swift shader in order to get it to even

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launch the game you have to change your CPU affinity to something other than all

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processors so it looks like eight eight processors total so we

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instead are going to allow it an entire pneuma

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node now let's see how it runs

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this is crazy now to be clear

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no one at google where they're developing the software expects anyone

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to game on cpus

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as the graphics card anytime soon it's designed more

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as like a compatibility layer but uh

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it's working come on i want one kill

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yes all right so now that we're not being

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silly here it is 4k everything cranked to high

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it's actually kind of amazing how still

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kind of respectable this game looks all these years later

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i mean the ai is dumb as toast by modern

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standards and stuff but honestly crisis didn't run well but that's in large part

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due to it just being really really old and not particularly well optimized

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let's run something a little more modern and see how that goes shall we i mean

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apex isn't exactly the most demanding game on the market but it's certainly

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popular so so let's go have a look at how things are running here we are using

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a grand total of two percent of our CPU

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right now um

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overall utilization and we peaked out about 12

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in game we'll be turboing up to around three point okay nothing amazing like

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3.3 3.4 gigahertz but that's more than enough to run this game

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at 144 frames per second average we're actually locked to our refresh rate

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because i didn't bother to adjust it holy crap i think my team is bothering

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to respawn me here wow that uh that was a waste of effort

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appreciate you guys though okay so i don't have any of my stuff now

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though like i'm just naked at this point right wow they're like pinging stuff for

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me i wonder if they know who i am uh h to thank them

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thanks all right all right i'm coming i'm ready to contribute to the team now they're

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they're trying so hard to help me like i feel so bad for them right now

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seven squads left so we're actually like doing respectably

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i think i'm not as much of a liability as dennis

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oh no they pinged a thing we're oh we're going somewhere no no i don't want to go

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anywhere i liked this place this place seemed pretty good oh oh shoot there's

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like enemies all over the town run

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i got a kill they totally like set it up for me but

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whatever i want to win brandon i am a competitive gamer

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hey there's nothing wrong with being supportive okay bras are supportive and

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they're very popular

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actually that's true millennials are apparently killing bras

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okay there's only three squads left ladies and gentlemen

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oh they're picking me up again go team if

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they can kill that guy they may actually pick me up again let's see if i'm the

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chico can take this guy out oh they might get him no way

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wow we're one of the final squads these guys

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oh man this is hilarious how do i heal

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i don't know how to heal oh no hold four

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hold it and then drag your mouse yeah let go and then now press four oh my goodness they go so

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fast i can't keep up what where are we going okay i'm healing

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i'm healing they can't hear me but whatever it's chill please just hit him

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oh you gotta be kidding me i think i just got hit in the head

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okay that's fine i will just heal more i'm just i'm a distraction i'm a

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distraction i'm bleeding out no

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no is it 1v3 right now oh no

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no i leveled up so that's it for now this

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thing renders it crunches it games it slices it dices it's pretty freaking

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amazing and we've actually got a fair bit more content planned around AMD's

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epic roam processors for the future so make sure you're subscribed so you don't

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miss any of it and i think all that's left is to thank

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info to fall into the wrong hands then check out today's sponsor privacy.com at

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privacy.com Linus privacy.com is a free

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easy to use service that hides your credit card number you see it works by

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creating a virtual card that's locked to whatever merchant you're shopping at so

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even if that merchant gets hacked the bad guys won't be able to just use your

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card anywhere they please and if they try you'll get a push notification so

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that you're always in the loop and you can cancel that card immediately cards

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are super easy to set up you just need to create an account link your virtual

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cards to your checking account or debit card add a limit and voila you're all

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set they've also got a browser extension that autofills information for you when

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making a purchase privacy.com is pci dss

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compliant uses military-grade encryption to secure your information and offers

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two-factor authentication and since they make money from merchants there's no

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cost to you so if you sign up today you'll even get five dollars for free

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check it out at privacy.com forward slash Linus that's privacy.com forward

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slash Linus so thanks for watching guys if you enjoyed this video check out our forum

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or the where to buy link in the video description and if you want something

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else to watch that you might enjoy check out our video on upgrading our petabyte

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project our petabyte of storage we'll have that linked as well