AMD EPYC Genoa Server CPU Details Leak Out

Particulars of AMD’s next-generation EPYC Genoa Server CPU lineup which can function the Zen 4 core structure have leaked out by ExecutableFix. The small print level out varied specs for the upcoming lineup and the respective SP5 platform which can succeed AMD’s present SP3 platform that has lasted three generations of EPYC CPUs together with Naples, Rome, and the upcoming, Milan.

AMD EPYC Genoa Server CPU Particulars Leak Out – Large 96 Zen 4 Cores In Up To 12 Chiplets, DDR5/PCIe 5 Assist, LGA 6096 Socket

We’ve heard some little tidbits about AMD’s EPYC Genoa previously but it surely seems like the newest tweet by ExecutableFix spills the beans on the grandest EPYC launch so far. AMD might be transferring over to a brand new platform and introducing so many new options that every one deserves a particular point out of its personal. The Genoa lineup is pinned to ship later this yr with a tough launch round 2022.

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Beginning with the main points, AMD has already introduced that EPYC Genoa can be suitable with the brand new SP5 platform which brings a brand new socket so SP3 compatibility would exist up until EPYC Milan. The EPYC Genoa processors would additionally function assist for brand new reminiscence and new capabilities. Within the newest particulars, it’s reported that the SP5 platform will even function a model new socket that may function 6096 pins organize within the LGA (Land Grid Array) format. This might be by far the largest socket that AMD has ever designed with 2002 extra pins than the prevailing LGA 4094 socket.

The socket will assist AMD’s EPYC Genoa and future generations of EPYC chips. Speaking about Genoa CPUs themselves, the chips will pack a mammoth 96 cores and 192 threads. These might be based mostly on AMD’s model new Zen 4 core structure which is anticipated to ship some insane IPC uplifts whereas using the TSMC 5nm course of node. A latest rumor had identified that the AMD EPYC Genoa CPUs are anticipated to supply as much as 29% IPC uplift over Milan CPUs and a 40% general enchancment because of different key applied sciences that we are going to get to in a bit.

To get to 96 cores, AMD has to pack extra cores in its EPYC Genoa CPU package deal. AMD is alleged to realize this by incorporating a complete of as much as 12 CCD’s in its Genoa chip. Every CCD will function 8 cores based mostly on the Zen 4 structure. That aligns with the elevated socket measurement and we might be taking a look at an enormous CPU interposer, even bigger than the prevailing EPYC CPUs. The CPU is alleged to function TDPs of 320W which might be configurable as much as 400W.

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Now that is one space which has seen an enormous enhance. The present high components max out at 280W TDPs so a TDP of 400W is an insane 120W greater than Milan. However given the elevated efficiency and core counts, we will undoubtedly count on some top-notch effectivity for Genoa. On the identical time, we will additionally count on quicker clock speeds, particularly the bottom frequencies which may take a direct good thing about the elevated TDP. The IO die might be separate from the CCD’s and that may convey up the full chiplet rely on the chip to 13.

Aside from that, it’s acknowledged that AMD’s EPYC Genoa CPUs will function 128 PCIe Gen 5.0 lanes, 160 for a 2P (dual-socket) configuration. The SP5 platform will even function DDR5-5200 reminiscence assist which is a few insane enchancment over the prevailing DDR4-3200 MHz DIMMs. However that is not all, it’s going to additionally assist as much as 12 DDR5 reminiscence channels and a pair of DIMMs per channel which can enable as much as 3 TB of system reminiscence utilizing 128 GB modules.

The principle competitor of AMD’s EPYC Genoa lineup can be Intel’s Sapphire Rapids Xeon household which is anticipated to launch in 2022 too with PCIe Gen 5 and DDR5 reminiscence assist. The lineup was not too long ago rumored to not get a quantity ramp till 2023 which you’ll be able to learn extra about over right here. Total, AMD’s Genoa lineup appears to be in nice type after this leak and might be a serious disruption for the server section if AMD performs its playing cards proper until Genoa’s launch.

AMD EPYC CPU Households:

Household Identify AMD EPYC Naples AMD EPYC Rome AMD EPYC Milan AMD EPYC Genoa
Household Branding EPYC 7001 EPYC 7002 EPYC 7003 EPYC 7004?
Household Launch 2017 2019 2021 2022
CPU Structure Zen 1 Zen 2 Zen 3 Zen 4
Course of Node 14nm GloFo 7nm TSMC 7nm TSMC 5nm TSMC
Platform Identify SP3 SP3 SP3 SP5
Socket LGA 4094 LGA 4094 LGA 4094 LGA 6096
Max Core Depend 32 64 64 96
Max Thread Depend 64 128 128 192
Max L3 Cache 64 MB 256 MB 256 MB 384 MB?
Chiplet Design 4 CCD’s (2 CCX’s per CCD) 8 CCD’s (2 CCX’s per CCD) + 1 IOD 8 CCD’s (2 CCX’s per CCD) + 1 IOD 12 CCD’s (2 CCX’s per CCD) + 1 IOD
Reminiscence Assist DDR4-2666 DDR4-3200 DDR4-3200 DDR5-5200
Reminiscence Channels 8 Channel 8 Channel 8 Channel 12 Channel
PCIe Gen Assist 64 Gen 3 128 Gen 4 128 Gen 4 128 Gen 5
TDP Vary 200W 280W 280W 320W (cTDP 400W)