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Leak details 16 core AMD Zen

LordOfChaos

Member
http://techreport.com/news/28097/leak-describes-compute-oriented-amd-server-chip-with-16-zen-cores

. The site has posted a legit-looking slide describing a monster with up to 16 Zen cores and 32 threads, doubling the CPU payload of the rumored desktop chip. Each core is paired with 512KB of L2 cache, according to the document, and there's 32MB of shared L3 between them.

The CPU cores are joined by a "Stream Processor" dubbed Greenland. Obviously intended for more than just graphics, this spruced-up GPU promises ECC protection and only a 50% performance hit for double-precision math. More impressively, Greenland apparently gets up to 16GB of HBM memory with a cool 512GB/s of bandwidth. The slide also mentions a quad-channel DDR4 memory controller that supports speeds up to 3200MHz. ECC is included, of course, and the controller is supposed to handle up to a terabyte of total memory.
 

OmegaDL50

Member
This sounds way too good to be true and I will take it with a grain of salt.

Something like this however wouldn't have much practical use in a gaming PC (no current game available would even take full advantage of it and would be the equivalent of shooting fish in a barrel, but in this case the gun is a cannon.

I would realistically think this thing is more for server usage, or high end graphical development and design, similar of the workstation graphics chips along the lines of the Nvidia Quadro or the Radeon Firepro series...however in this case THIS being an APU.
 
This sounds way too good to be true and I will take it with a grain of salt.

Something like this however wouldn't have much practical use in a gaming PC (no current game available would even take full advantage of it and would be the equivalent of shooting fish in a barrel, but in this case the gun is a cannon.

I would realistically think this thing is more for server usage, or high end graphical development and design, similar of the workstation graphics chips along the lines of the Nvidia Quadro or the Radeon Firepro series...however in this case THIS being an APU.

So you're saying this new gpu wouldn't have practical use because it's too powerful for current games? How is that a bad thing?
 

Ty4on

Member
Edit: ^^^^^ Apparently rumored for Zen. New to me as well.
4+0001.jpg

So you're saying this new gpu wouldn't have practical use because it's too powerful for current games? How is that a bad thing?

32 threads won't do much if games can't use more than 4 effectively.
 

Feep

Banned
Game CPU work is just relatively difficult to parallelize well, so it's tough to take advantage of all dem corez.
 

bomblord1

Banned
Sounds like a server CPU I can't see this having any practical gaming use unless it has monster per core performance.
 

OmegaDL50

Member
So you're saying this new gpu wouldn't have practical use because it's too powerful for current games? How is that a bad thing?

I say more in the example of having a very high end graphical setup. Like having Tri or Quad SLI GTX 980's and only running it in 1080p with Vsync. Basically having all of this power at your disposal and not ever realistically getting a full advantage out of it.

Also this isn't a desktop graphics card. It's a server processor with build-in graphics functions, an APU. Read the linked article please.

This APU does not seem to be intended for basic desktop / gaming PC usage, but much more so for server management or graphic workstations.

32 threads won't do much if games can't use more than 4 effectively.

This reason too.
 

Toad King

Banned
I can't wait for AMD to release another processor with double the cores of anything Intel has but because single core performance is so bad it effectively performs worse in 99% of use cases.
 

LordOfChaos

Member
16 cores, ECC? This sounds like an HPC/Server SoC more than something this forum would be interested in.

That's correct. However historically server parts from AMD have taken server features like ECC out and then been plopped right in the consumer sector.

AMD's take on Hyperthreading will be interesting, at any rate I'm glad they're rid of the Module concept and going for full bored cores.
 

AJLma

Member
Not even sure what type of chip I'm reading about here. Sounds crazy though.

It seems like the same story over and over again, but I think AMD has learned a lot in the past few years and all of their rumored tech sounds pretty amazing. I'm excited for whenever their next conference is.
 

Zaptruder

Banned
How's this play with DX12? I thought DX12 was supposed to allow significantly more scalability with the CPU and GPU (albeit with the onus on developers to take advantage).
 

elelunicy

Member
32 threads won't do much if games can't use more than 4 effectively.

Many new games can use more than 4 threads effectively.

AC: Unity, for example, can use all 16 threads on an i7 5960x and almost double the frames vs. an i7 4970k (assuming no GPU bottleneck).
 

KePoW

Banned
So you're saying this new gpu wouldn't have practical use because it's too powerful for current games? How is that a bad thing?

Others have already answered you, but here's another example:

Same reason why most normal gamers buy i5 instead of i7

i7 is mostly pointless for strictly gaming, so there's no reason to pay the higher price
 

CTLance

Member
Noice. Now, that's such an overpowered monster, it has to be some sort of specialised server or computing part.

/random thought: One of these days I'm gonna buy me an ECC'd rig. Just because. I'm always distrustful of my RAM, no matter how much it cost or which brand is attached to it. Much better if you can verify that stuff.
I_should_buy_ECC_cat.jpg
 

Bl@de

Member
Sounds like a server CPU similar to Xeon CPUs. Nice but nothing I'm interested in. Then again, my current system has a Xeon so you never know...
 

DieH@rd

Banned
Consumer space don't need these kinds of core numbers. This is most likely from upcoming server CPU line.

32 threads won't do much if games can't use more than 4 effectively.

That was in DX9/11 days which was singlecore friendly with poor scaling for other threads. Mantle/Vuklan/DX12 are fully multithreaded.
 

KePoW

Banned
That was in DX9/11 days which was singlecore friendly with poor scaling for other threads. Mantle/Vuklan/DX12 are fully multithreaded.

Doesn't each specific game still have to be coded/optimized for all those extra cores?

Or those APIs completely do it automatically with no extra work from programmers now?
 

Durante

Member
Guys, this chip doesn't sound all that "out-there" at all. Intel will happily sell an 18-core, 36-thread CPU with 45 MB shared L3 to you right now.
 

McHuj

Member
It does seem like a good of a next-gen console APU. I wouldn't spend too much time on the details of this particular chip, but the important things, imo, are cpu cores that do some sort of hyper threading with L3 cache and HBM memory support.

My guess the next gen will look similar, but substitute some additional GPU cores for some of CPU cores and only HBM memory instead of both DDR4 and HBM.
 

Skel1ingt0n

I can't *believe* these lazy developers keep making file sizes so damn large. Btw, how does technology work?
Can't believe I'm the first to post this...

350x700px-LL-cdb04d12_1320791647117.jpeg
 

LordOfChaos

Member
In terms of expectations and the "more cores ahoy" approach.
Not the technology itself.

More cores doesn't necessarily mean each one is small here. AMD has gone for really big dies that eat at their margins before...And since this is a server part, more cores ahoy is kind of par for the course.
 

Inuhanyou

Believes Dragon Quest is a franchise managed by Sony
For games, the CPU performance is diminishing returns. You don't really need much more than a low end i5 at most for 99% of games, especially since a lot of them are console ports with games built specifically for those CPU's
 

SerTapTap

Member
As someone who encodes a crapton of videos AND plays games (and makes said videos of games), this sounds awesome...I wonder if Handbrake/Vegas/etc can actually handle 16+ threads though...never had more than 8 for obvious reasons. If this is real it could be very interesting. Doesn't sound like a desktop chip but whatever it is is interesting.
 

blu

Wants the largest console games publisher to avoid Nintendo's platforms.
Noice. Now, that's such an overpowered monster, it has to be some sort of specialised server or computing part.

/random thought: One of these days I'm gonna buy me an ECC'd rig. Just because. I'm always distrustful of my RAM, no matter how much it cost or which brand is attached to it. Much better if you can verify that stuff.
I_should_buy_ECC_cat.jpg
You should, actually. I too am replacing my ECC-less ram at home with ECC these days.

so that stream processor is AMD counterpart to Xeon Phi what was it called
Larabee or knightcorner?
Larrabee was 1st gen 'we're taking over the GPUs!', KNC was 2nd gen 'ok, maybe not GPU, but how about GPGPU?', and KNL (knights landing) will hopefully be 'ok, this time we actually get GPGPU'. /fingers crossed

Guys, this chip doesn't sound all that "out-there" at all. Intel will happily sell an 18-core, 36-thread CPU with 45 MB shared L3 to you right now.
The obvious question here is for how much.
 
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