AMD might be planning to launch the EPYC Genoa CPUs with HBM memory

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We already know that Intel will soon be providing Server CPUs powered by the HBM technology. However, according to recent sources, AMD seems to be planning to do the same for its own EPYC Genoa variants based on the Zen 4 architecture for bandwidth-bound workloads.

According to sources, the folks at Impact-Hardware reported that they have received information suggesting that AMD is planning an HBM variant of its upcoming EPYC Genoa CPUs powered by the Zen 4 core architecture. There are many details available regarding the Genoa CPUs, however, this is the first time we are hearing about an HBM variant.

There is indeed a recurring question of an HBM version of Zen 4 among partners, but for the moment nothing seems definitively decided on this subject. The manufacturer could indeed reserve such a solution for certain customers or ultimately prefer a variation with 3D V-Cache.

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We have previously heard many reports where AMD’s partners have been asking the manufacturers as to when it will start offering an EPYC CPU with HBM memory. Intel is already a step ahead of AMD since it announced its HBM variant of Sapphire Rapids, but the chips are expected to arrive in 2023, so it’s a long road ahead.

Team red is also preparing its Milan-X lineup as an intermediate entry between the Zen 3 and Zen 4. The chip will also feature a 3D chip stacking technology and the company has still not made clear whether the die stacking is based around CCD’s or V-Cache.

AMD EPYC CPU Families:

Family NameAMD EPYC NaplesAMD EPYC RomeAMD EPYC MilanAMD EPYC Genoa
Family BrandingEPYC 7001EPYC 7002EPYC 7003EPYC 7004?
Family Launch2017201920212022
CPU ArchitectureZen 1Zen 2Zen 3Zen 4
Process Node14nm GloFo7nm TSMC7nm TSMC5nm TSMC
Platform NameSP3SP3SP3SP5
SocketLGA 4094LGA 4094LGA 4094LGA 6096
Max Core Count32646496
Max Thread Count64128128192
Max L3 Cache64 MB256 MB256 MB384 MB?
Chiplet Design4 CCD’s (2 CCX’s per CCD)8 CCD’s (2 CCX’s per CCD) + 1 IOD8 CCD’s (1 CCX per CCD) + 1 IOD12 CCD’s (1 CCX per CCD) + 1 IOD
Memory SupportDDR4-2666DDR4-3200DDR4-3200DDR5-5200
Memory Channels8 Channel8 Channel8 Channel12 Channel
PCIe Gen Support64 Gen 3128 Gen 4128 Gen 4128 Gen 5
TDP Range200W280W280W320W (cTDP 400W)
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