Wednesday, July 8th 2020

AMD Ryzen Threadripper PRO 3995WX Processor Pictured: 8-channel DDR4

Here is the first picture of the Ryzen Threadripper PRO 3995WX processor, designed to be part of AMD's HEDT/workstation processor launch for this year. The picture surfaced briefly on the ChipHell forums, before being picked up by HXL (@9550pro) This processor is designed to compete with Intel Xeon W series processors, such as the W-3175X, and is hence located a segment above even the "normal" Threadripper series led by the 64-core/128-thread Threadripper 3990X. Besides certain features exclusive to Ryzen PRO series processors, the killer feature with the 3995WX is a menacing 8-channel DDR4 memory interface, that can handle up to 2 TB of memory with ECC.

The Threadripper PRO 3995X is expected to have a mostly identical I/O to the most expensive EPYC 7662 processor. As a Ryzen-branded chip, it could feature higher clock speeds than its EPYC counterpart. To enable its 8-channel memory, the processor could come with a new socket, likely the sWRX8, and AMD WRX80 chipset, although it wouldn't surprise us if these processors have some form of inter-compatibility with sTRX4 and TRX40 (at limited memory bandwidth and PCIe capabilities, of course). Sources tell VideoCardz that AMD could announce the Ryzen Threadripper PRO series as early as July 14, 2020.
Sources: HXL (Twitter), ChipHell Forums, VideoCardz
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28 Comments on AMD Ryzen Threadripper PRO 3995WX Processor Pictured: 8-channel DDR4

#1
HenrySomeone
New socket again? I thought AMD is all about "long-life" sockets, lol
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#2
Lionheart
I can see Wendel from Level1Tech wanting one of these.
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#3
aktpu
Heck, I want one. "Sadly" 1950x is still enough for daily work
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#4
Imouto
Whoever did that photoshop did a terrible job. Didn't fake the fresnel properly, the font is skewed and made it smaller so the "AMD Ryzen Threadripper PRO 3995WX" fits in the same space as the "AMD Ryzen Threadripper 39XXX". Also correct me if I'm wrong but the QR code looks the same as the 3990X. And the QR doesn't align with the lines beside it.
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#5
panzar
HenrySomeone
New socket again? I thought AMD is all about "long-life" sockets, lol
mainstream yes, higher tier stuff - who cares? You want the goodies? You pay extra.
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#6
laszlo
Imouto
Whoever did that photoshop did a terrible job. Didn't fake the fresnel properly, the font is skewed and made it smaller so the "AMD Ryzen Threadripper PRO 3995WX" fits in the same space as the "AMD Ryzen Threadripper 39XXX". Also correct me if I'm wrong but the QR code looks the same as the 3990X. And the QR doesn't align with the lines beside it.
don't know if is fake or not but qr is aligned perfectly ...take a ruler and put it on screen..
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#8
$ReaPeR$
Lionheart
I can see Wendel from Level1Tech wanting one of these.
hes not the only one.. :cool:
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#9
HDogMcGraw
HenrySomeone
New socket again? I thought AMD is all about "long-life" sockets, lol
The socket will remain the same for the Zen3 based 4000 series Threadrippers. AMD has already committed at least one more generation of mainstream Threadripper on sTrx4.
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#11
$ReaPeR$
HenrySomeone
This very article is mentioning sWRX8
yeah... it also mentions this, "To enable its 8-channel memory, the processor could come with a new socket, likely the sWRX8, and AMD WRX80 chipset, although it wouldn't surprise us if these processors have some form of inter-compatibility with sTRX4 and TRX40 (at limited memory bandwidth and PCIe capabilities, of course). " which you conveniently "forgot" to mention.. i wonder why..? :rolleyes:
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#12
HenrySomeone
3995x without 8 channels will be no more than 3990x; we've just seen how much their "improved silicon" a year later is worth :p
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#13
$ReaPeR$
HenrySomeone
3995x without 8 channels will be no more than 3990x; we've just seen how much their "improved silicon" a year later is worth :p
dont buy it then. btw, your original comment was a complaint about the new socket, but now you move the goalposts to the new silicon.. tststs
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#14
Octavean
HenrySomeone
New socket again? I thought AMD is all about "long-life" sockets, lol
Threadripper has already undergone an upgrade that rendered the first and second generation processors incomparable with the current platform TRX40.

8-channel DDR4 memory may necessitate another change but for those who can take advantage of that feature and pay for it the change isn't necessarily something to worry about,.....to say nothing about clutching their purse or Pearls over.

Most people are priced out of the Threadripper platform or at least most are priced out of the current / newer Threadripper platforms especially at the top end of the market,.....so its a none issue for 99.99% of people in forums like these.

1% wont blink at the ~$4000+ USD price tag of the current 3990x Threadripper or $$$$$ for the upcoming 3995x,..... Why would they blink at needing a new motherboard for it?
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#15
Tomorrow
HenrySomeone
New socket again? I thought AMD is all about "long-life" sockets, lol
Yep. It was a major dissapointment that they broke TR1000 and TR2000 compatibility with the new socket yet somehow managed to retain it on AM4 across generations. And if this CPU is real then again a new socket for 8 channel memory configuration. sWRX80 was also rumored before TR3000 launch. Also problably a new socket after 4000 series TR comes out likely next year.

AMD specificly stated that the TR3000 socket change was to enable longer support but that's blatantly false if sTR40 receives only two generations of CPU's like TR4 socket did.
When Threadripper first came out it was great but AMD broke compatibility and significantly upped the prices with TR3000 once they saw that Intel was unable to complete (in terms of performance, energy efficiency and even availability).

This is why we need competition. I have no doubt that AMD would do the same on desktop with AM5 if Intel is unable to compete. Raise prices and limit AM5 to two generations of CPU's.
That's not the future im looking forward to. And as much as i love my 3800X and AM4 and as much as i dislike Intel - AMD is not above criticism for me.
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#16
Octavean
That very well might be a fair point, however, its not like maintaining AM4 insures comparability. A RyZen 3000 series processor wont run on a first gen RyZen motherboard and a first gen RyZen processor are not supported on the latest X570 or B550 motherboards.

Significant improvements in successive processor iterations over a span of years aren't easily planed for on version 1.0 of the platform.

If people want more then just a meager clock bump they may have to sacrifice some backward compatibility at some point.

Intel's implementations was wrong in that it was planned obsolescence if not forced obsolescence from generation to generation. That was egregious.

Hopefully AMD doesn't do anything like this or make a habit of it but again most people aren't on the Threadripper platform here. The few that are likely bought in after significant price cuts when AMD moved on to the next generation. The few that didn't buy discount last gen Threadripper probably use it as a workstation and apply real workloads not just games. Those are working machines that need to earn their keep, the economics of which doesn't make it difficult to upgrade when applicable regardless of platform / socket change (at least not when it comes to money but rather downtime is the problem).
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#17
dragontamer5788
btarunr
The Threadripper PRO 3995X is expected to have a mostly identical I/O to the most expensive EPYC 7662 processor. As a Ryzen-branded chip, it could feature higher clock speeds than its EPYC counterpart. To enable its 8-channel memory, the processor could come with a new socket, likely the sWRX8, and AMD WRX80 chipset, although it wouldn't surprise us if these processors have some form of inter-compatibility with sTRX4 and TRX40 (at limited memory bandwidth and PCIe capabilities, of course). Sources tell VideoCardz that AMD could announce the Ryzen Threadripper PRO series as early as July 14, 2020.
Hmm... I'll bet that the Threadripper 3995X will also be compatible with UDIMMs. EPYC chips are RDIMMs or LRDIMMs. IE: EPYC will still be needed for high-end 1TB RAM servers outfitted with 128GB LRDIMM sticks. Threadripper probably will have less ram capacity, even with 8x slots, capping out at 32GB/stick or 256GBs of RAM or so.

I'm kind of surprised that this product exists at all. I figure that if someone wanted 128-threads, they'd prefer a wider machine. Maybe this Threadripper PRO is for the HFT crowd (known for overclocking and needing obscure, very low-latency, machines). This 3995X isn't mainstream at all... most normies probably would use a EPYC 7662 over it.
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#18
InVasMani
HenrySomeone
New socket again? I thought AMD is all about "long-life" sockets, lol
Well it is 8-channel DDR4 I think AMD can be forgiven on a $4000+ CPU requiring a new motherboard to double the memory channel bandwidth sure seems more reasonable than Intel requiring a new chipset for Optane memory utilizing the same damn M.2 slot connectivety between Z170 and Z270.
dragontamer5788
I'm kind of surprised that this product exists at all. I figure that if someone wanted 128-threads, they'd prefer a wider machine. Maybe this Threadripper PRO is for the HFT crowd (known for overclocking and needing obscure, very low-latency, machines). This 3995X isn't mainstream at all... most normies probably would use a EPYC 7662 over it.
Epyc in the past didn't scale nearly as well in frequency though scaling is closer between AM4 and TR platform though still favors AM4 I think or did at least binning enough top quality chips is easier when you need less of them in total. Now assuming that holds true here I'd expect the TR to be a better balanced system want higher combined peak thread scaling per core performance over Epyc. Combined with the bandwidth it'll probably be the new gaming workstation king of the hill by a long shot.

On another note with 8-channel memory imagine what a TR chip like this designed intentionally as APU would perform like!? If they cut the CPU cores in half or even a quarter and utilized the rest for stream processors it would be rather beastly for a APU especially if they transitioned to RNDA2 on the APU side. I mean it wouldn't beat discrete, but it sure would go a long way towards eating up a lot of the mid range GPU's while leaving the PCI-E slots available for whatever else you want to pair it with like a x16 PCI-E 4.0 quad NVMe raid card which if the APU had HBCC would be pretty interesting.

I want to see that 8-channel memory tested with Primo Cache on a quad PCI-E 4.0 NVMe setup. That thing would absolutely scream on the I/O side of things.
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#19
chaosmassive
HenrySomeone
New socket again? I thought AMD is all about "long-life" sockets, lol
AMD never promised longevity of Threadripper socket, I never saw there is a marketing slide/statement in that regard.
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#20
InVasMani
chaosmassive
AMD never promised longevity of Threadripper socket, I never saw there is a marketing slide/statement in that regard.
It's a silly comment given they are going from 4 channel to 8-channel memory bandwidth on TR I think that fact alone pretty well justifies it that's no minor change.
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#21
Tomorrow
Most
chaosmassive
AMD never promised longevity of Threadripper socket, I never saw there is a marketing slide/statement in that regard.
Then you need to look harder: Amd/comments/dsy4kwThere are two essential reasons for this:
  1. We wanted to drive maximum performance for the 3rd Gen AMD Ryzen Threadripper processors and sTRX4 helps us do exactly that. The 3rd Gen Threadripper will have 88 total PCIe Gen 4 lanes with 72 usable (CPU+motherboard). The net of total versus usable is because we’re also increasing the CPU<->chipset link from 4x Gen4 to 8x Gen4—quadruple the bandwidth vs. 2nd Gen TR. Extra data pins between the chipset and CPU make this possible, so you’ll be able to hang more I/O off the motherboard at full performance.
  2. The socket change also sets us up nicely for future development and scalability of the Threadripper platform, both on a near- and long-term basis.
Yet despite this EPYC CPU's retained compatiblity without a socket change while still introducing PCIe 4.0
So AMD's arguments are pretty hollow. And now with sWRX80 platform and DDR5 based platform coming in 2022 i fail to see where this long term support and scalability exists when users can expect barely ~2 years of support with sTRX40 still needing a replacement to run WRX CPU's. AMD should have enabled TR4/X399 compatibility even if it meant losing some features like wider CPU-Chipset uplink and then gone all out with unified DDR5 based 8 channel system in 2022. Instead we got 2 intermediate sockets that are not compatible with each other nor backwards or forwards. Great job AMD...
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#22
InVasMani
Tomorrow
Most

Then you need to look harder: Amd/comments/dsy4kwThere are two essential reasons for this:
  1. We wanted to drive maximum performance for the 3rd Gen AMD Ryzen Threadripper processors and sTRX4 helps us do exactly that. The 3rd Gen Threadripper will have 88 total PCIe Gen 4 lanes with 72 usable (CPU+motherboard). The net of total versus usable is because we’re also increasing the CPU<->chipset link from 4x Gen4 to 8x Gen4—quadruple the bandwidth vs. 2nd Gen TR. Extra data pins between the chipset and CPU make this possible, so you’ll be able to hang more I/O off the motherboard at full performance.
  2. The socket change also sets us up nicely for future development and scalability of the Threadripper platform, both on a near- and long-term basis.
Yet despite this EPYC CPU's retained compatiblity without a socket change while still introducing PCIe 4.0
So AMD's arguments are pretty hollow. And now with sWRX80 platform and DDR5 based platform coming in 2022 i fail to see where this long term support and scalability exists when users can expect barely ~2 years of support with sTRX40 still needing a replacement to run WRX CPU's. AMD should have enabled TR4/X399 compatibility even if it meant losing some features like wider CPU-Chipset uplink and then gone all out with unified DDR5 based 8 channel system in 2022. Instead we got 2 intermediate sockets that are not compatible with each other nor backwards or forwards. Great job AMD...
I get what you're saying, but TR really is the odd one out in the equation between AM4 and Epyc in terms of support. It sits squarely between the two in many ways. I honestly sort of feel like AMD should use a die shrink chiplet on the original TR socket and the zen2 refreshed TR socket at 5nm even if they do launch another socket with new perks and a wider array of newer TR chips for it. I'm not sure it would hurt them to do it and I can't imagine it would be difficult to re-purpose some of the chips they've been producing at 7nm for the older TR socket and do similar at 5nm later on with the recently refreshed TR socket. They wouldn't need several varients literally just reasonably improved one would be sufficient enough and win over a lot of positive sentiment.
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#23
Tom Yum
Octavean
That very well might be a fair point, however, its not like maintaining AM4 insures comparability. A RyZen 3000 series processor wont run on a first gen RyZen motherboard.
That is not true, my 3900X runs flawlessly on my ASRock X370 Taichi, it received a bios update to support the 3000 series the day it came out.

Regarding 8 channel Threadripper requiring a new socket, I can only understand people being annoyed if AMD doesn't release 4th gen Threadripper on sTR4. If AMD is establishing another tier of Threadripper that supports 8 channel memory, then I can't see why that would upset sTR4 users, especially if they get a 4th gen update (that would remain limited to 4 channel memory).

Socket compatibility at this end of the market matters less than mainstream. 1) the ratio of build cost to motherboard cost makes replacing the motherboard a relatively smaller cost driver for upgrading, and 2) the point of these processors is maximum performance at any cost, so it seems bizarre that people would happily pay $4k for a processor (and 4 more DIMMS) but be offended about the need for a new $400-600 motherboard.
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#24
wiyosaya
I saw a story quite a while ago that mentioned both sockets - sTRX4 and sWRX8. When sTRX4 procs released, I wondered what happened to sWRX8 procs. This was not the story that I saw, but it says essentially the same thing (it is a site I am not familiar with) - www.cgdirector.com/threadripper-3000-platform-details-release-date/

The story lists sTRX4 as HEDT and sWRX8 as workstation.
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#25
gmn 17
I’m wondering How much a 8x256gb ram kit gonna set you back?
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