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Rumor: AMD Epyc2 processors could get 64 cores over 8+1 dies
That AMD has been going insanely strong with many-core processors is not a surprise, you've read all our Threadripper reviews and have learned that the top tier processors (e.g. 32-core versions) have four dies each holding 8 CPU cores. So what does the future bring? Well, how do 64 cores over eight dies sound?
The chatter at the moment is based on an 8+1 version block diagram spreading on the web, with 8 dies and 8-cores per die you are looking at 64 cores and 128 Threads. Obviously, that kind of design would apply towards AMD Epyc2 processors or even later revisions. The extra (middle) die is intended for a dedicated system controller chip.
The dies would all be connected over the infinity fabric with a dedicated system controller. This new rumor was derived from ComputerBase who noticed information from SemiAccurate plus sketches that an engineer has put on Twitter. In his own words, these sketches are his interpretation of how AMD would build the upcoming server processors. Backtracing the twitter account I noticed that the block diagrams have been posted by K.H. Chia, he is a retired engineer. So if this is just an example showcase present to AMD or not, we cannot verify. So how true or false these new design sketches are, remains to be seen but for now I rate this as some speculation at best. The architecture is listed as Rome.
If AMD shrinks the dies towards 7nm next year, effectively they have a die half the size of what it currently is. More dies would fit on the same surface. Placing a chip in the middle that is connected to all the CPU-dies could result in less latency than in the current design where the ccx's are interconnected via the Infinity Fabric.
AMD has officially not yet published any specific about the Epyc 2 server processors. The manufacturer has said that the processors are made on the 7nm process of TSMC and that they will become next year.
Rumor: AMD Might Host Threadripper 2000 event in Scuderia Ferrari’s hometown Maranello - 06/30/2018 07:36 PM
A new rumor has surfaced on the web today, AMD would be celebrating it's one-year HEDT Threadripper release, with an event planned for Threadripper 2. This launch event would take place in Maranello,...
Rumor: ASUS Would be Repositioning AMD Graphics cards under a new AREZ brand - 04/06/2018 05:07 PM
The uncomfortable GPP discussion does not seem to stop, some new info just surfaced. It's unconfirmed but from the looks of it, ASUS will be rebranding their Radeon lineup and moving them away from A...
Rumor: ASRock is going to make graphics cards - 03/07/2018 03:30 PM
According to Digitimes, ASRock has active plans to start fabbing graphics cards. ASRock would release AMD cards solely, and in April the first one should surface....
Rumor: AMD Radeon 490 and 490X Polaris graphics cards launch end of June - 04/07/2016 02:33 PM
In line with expectations today some new rumors surfaced on the mighty WWW. AMD possibly will have its first Polaris based series 400 Radeon graphics cards available in June, this would invoke the R9 ...
Rumor: AMD gets priority advantage to Hynix HBM2 - 07/15/2015 10:48 AM
This is an interesting story, apparently AMD secured the luxury of getting exclusive access to Hynix HBM2 graphics memory. The second iteration of High bandwith memory (stacked memory to be used on-d...
Aura89
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#5603737 Posted on: 11/06/2018 08:17 AM
AMD itself said that they will bring new PCI-e in 2020, there will be no Gen4 in 2019, at least not on desktop.
Why?
There's nothing stopping AMD from having CPUs that work with both PCI-Express 3.0 and 4.0, which is the only reason i can think that you would say they wouldn't be on desktop, is the idea that a new CPU would require a new socket so soon.
There's nothing stopping AMD from creating Zen2 CPUs with a x500 chipset and PCI-Express 4.0 support, and also allowing the CPU from working in x300 and x400 chipsets as well.
AMD itself said that they will bring new PCI-e in 2020, there will be no Gen4 in 2019, at least not on desktop.
Why?
There's nothing stopping AMD from having CPUs that work with both PCI-Express 3.0 and 4.0, which is the only reason i can think that you would say they wouldn't be on desktop, is the idea that a new CPU would require a new socket so soon.
There's nothing stopping AMD from creating Zen2 CPUs with a x500 chipset and PCI-Express 4.0 support, and also allowing the CPU from working in x300 and x400 chipsets as well.
xrodney
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Posts: 356
Joined: 2015-06-18
#5603875 Posted on: 11/06/2018 02:41 PM
Why?
There's nothing stopping AMD from having CPUs that work with both PCI-Express 3.0 and 4.0, which is the only reason i can think that you would say they wouldn't be on desktop, is the idea that a new CPU would require a new socket so soon.
There's nothing stopping AMD from creating Zen2 CPUs with a x500 chipset and PCI-Express 4.0 support, and also allowing the CPU from working in x300 and x400 chipsets as well.
I am not talking about Gen3, I am talking about Gen4 and Gen5 and why it would make more sense to skip Gen4 and go for Gen5 directly (if cost of implementation is not prohibitive here) instead of doing both soon after each other.
And as I mentioned AMD stated that they are bringing new PCI-e in 2020, so... unless something changed its not coming in 2019 with Zen2.
Why?
There's nothing stopping AMD from having CPUs that work with both PCI-Express 3.0 and 4.0, which is the only reason i can think that you would say they wouldn't be on desktop, is the idea that a new CPU would require a new socket so soon.
There's nothing stopping AMD from creating Zen2 CPUs with a x500 chipset and PCI-Express 4.0 support, and also allowing the CPU from working in x300 and x400 chipsets as well.
I am not talking about Gen3, I am talking about Gen4 and Gen5 and why it would make more sense to skip Gen4 and go for Gen5 directly (if cost of implementation is not prohibitive here) instead of doing both soon after each other.
And as I mentioned AMD stated that they are bringing new PCI-e in 2020, so... unless something changed its not coming in 2019 with Zen2.
Aura89
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Joined: 2008-07-31
#5604075 Posted on: 11/06/2018 11:00 PM
And as I mentioned AMD stated that they are bringing new PCI-e in 2020,
Don't know where you keep getting this information.
Everything states AMD has targeted PCI-Express 4.0 for 2020.
Again, your logic that PCI-Express 5.0 will be here so quickly when it's taken this long for PCI-Express 4.0 to come out...doesn't make sense.
Do you have some sort of inside knowledge as to why PCI-Express 4.0 was released almost 2 years ago but has not come out for the public use? Do you have some sort of inside knowledge that proves PCI-Express 4.0 is harder to implement then 5.0? Where is your logic coming from? What could possibly be so hard to implement 4.0, yet so easy and fast to implement 5.0?
Realistically if we want to go on speculations, it looks like AMD, from the pieces of information here and there, may release a GPU in 2020 with PCI-Express 4.0 support. Now, if you release a GPU, you'd likely want to have boards already available to use right? So it's not unlikely that PCI-Express 4.0 will be in the next AMD chipset with Zen2, but since there won't be any products until 2020 to actually take use of them, then the "whole package" will not be here until 2020. Or, they could wait for both till 2020, and Zen2+/3 and their respective chipsets will have 4.0 support.
But all that's speculation. The only thing we have been told is that AMD will bring PCI-Express 4.0 in 2020, nothing about 5.0.
And as I mentioned AMD stated that they are bringing new PCI-e in 2020,
Don't know where you keep getting this information.
Everything states AMD has targeted PCI-Express 4.0 for 2020.
Again, your logic that PCI-Express 5.0 will be here so quickly when it's taken this long for PCI-Express 4.0 to come out...doesn't make sense.
Do you have some sort of inside knowledge as to why PCI-Express 4.0 was released almost 2 years ago but has not come out for the public use? Do you have some sort of inside knowledge that proves PCI-Express 4.0 is harder to implement then 5.0? Where is your logic coming from? What could possibly be so hard to implement 4.0, yet so easy and fast to implement 5.0?
Realistically if we want to go on speculations, it looks like AMD, from the pieces of information here and there, may release a GPU in 2020 with PCI-Express 4.0 support. Now, if you release a GPU, you'd likely want to have boards already available to use right? So it's not unlikely that PCI-Express 4.0 will be in the next AMD chipset with Zen2, but since there won't be any products until 2020 to actually take use of them, then the "whole package" will not be here until 2020. Or, they could wait for both till 2020, and Zen2+/3 and their respective chipsets will have 4.0 support.
But all that's speculation. The only thing we have been told is that AMD will bring PCI-Express 4.0 in 2020, nothing about 5.0.
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Being "standardized" and actually released to products are different things.
PCI-E Gen 5 should be standardized in 2019.
PCI-E Gen 4 was standardized in 2017.
So if you expect companies to start making products in 2019 with PCI-E Gen 5, even though we have yet to get PCI-E Gen 4 items, i'm not sure where the logic is there.
Now i do expect it to be short lived relatively thinking, i expect to there to be 2-3 years of PCI-E Gen 4 products before Gen 5, which is much less then the 6-8 years or so that PCI-E Gen 3 has lasted.
All previous PCI-e standards were used in products within year from release and they actually start already working on them once they reach version 0.7 which is already where gen5 stands right now. There are unlikely be any functionality changes done, just small tweaking and ensuring backward compatibility is where it stands atm.
AMD itself said that they will bring new PCI-e in 2020, there will be no Gen4 in 2019, at least not on desktop.
So unless gen5 is extremely hard/expensive it does not make sense to use gen4 when gen5 is already out.
It might make sense to make new motherboards to last 1 year before they bring something else, they do it all the time, but I dont think AMD would want to go this way and they would neither want to wait several years to replace gen4 with gen5.
So it all depends, but for AMD implementing Gen5 could gain a lot for their IF (internal/external core to core bandwidth increase and latency reduction) as they are using same links for either PCI-e or IF functionality.