AMD Rumored To Offer Up To 128 Zen 4 Cores & 12-Channel DDR5-5200 Memory Support In Next-Gen EPYC & Threadripper CPUs

A new rumor has just popped up on Chiphell according to which AMD's next-gen Threadripper and EPYC CPUs could pack up to 128 cores based on the Zen 4 architecture.

AMD Next-Gen EPYC & Threadripper CPUs Rumored To Feature 128 Cores Based on Zen 4 Architecture, 12-Channel DDR5-5200 Memory

So far, we know that AMD is working on its EPYC Genoa lineup of server processors which will be offering up to 96 cores and 192 threads. The EPYC Genoa lineup will be based on the Zen 4 cores and we are also expecting to see a new server family before that known as Milan-X which will be utilizing the X3D chiplet packaging technology. Milan-X would be based on the Zen 3 architecture.

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Maybe, but not Genoa

— ExecutableFix (@ExecuFix) June 14, 2021

That's what we mainly know about the two Zen 3 and Zen 4 powered EPYC families. AMD will also be introducing Ryzen Threadripper and Threadripper Pro chips based on the Zen 3 architecture as the company strengthens its workstation portfolio but now a new rumor has been running wild for a few weeks.

There were multiple rumors that pointed that AMD's next-gen EPYC Genoa lineup would feature a maximum of 128 cores instead of 96 as previously reported. AMD has so far revealed no official details but based on the mockup renders from ExecutableFix, we saw that the Genoa chips would house 12 CCD's with Zen 4 cores. Since Zen 4 doesn't bump up the core count per CCD, we get a total of 96 cores. A chip with 128 cores would be a completely different beast but it looks like the new rumor does state that it won't be called Genoa.

The new CPUs, whether they be a part of the next-gen EPYC Server or HEDT Ryzen Threadripper family, will feature up to 128 cores packed within 16 CCDs that are powered by the Zen 4 core architecture. The CPU will also feature support for 12-channel DDR5-5200 memory. The CPU will feature a very different packaging design considering there's little to no space left on the Genoa 'LGA6096' CPU socket to accommodate any more CCDs but then again, we have only seen a mock-up and the real chip might feature enough room for up to 16 CCDs.

This is all just a rumor but it's definitely going to be one of the fastest CPUs on the market once it launches with a core count that might remain unchallenged for years to come.

AMD EPYC CPU Families:

Family Name	AMD EPYC Verano	AMD EPYC Venice	AMD EPYC Turin-X	AMD EPYC Turin-Dense	AMD EPYC Turin	AMD EPYC Siena	AMD EPYC Bergamo	AMD EPYC Genoa-X	AMD EPYC Genoa	AMD EPYC Milan-X	AMD EPYC Milan	AMD EPYC Rome	AMD EPYC Naples
Family Branding	EPYC 9007	EPYC 9006	EPYC 9005	EPYC 9005	EPYC 9005	EPYC 8004	EPYC 9004	EPYC 9004	EPYC 9004	EPYC 7004	EPYC 7003	EPYC 7002	EPYC 7001
Family Launch	2027	2026	2025	2025	2024	2023	2023	2023	2022	2022	2021	2019	2017
CPU Architecture	Zen 7	Zen 6	Zen 5	Zen 5C	Zen 5	Zen 4	Zen 4C	Zen 4 V-Cache	Zen 4	Zen 3	Zen 3	Zen 2	Zen 1
Process Node	TBD	2nm TSMC	4nm TSMC	3nm TSMC	4nm TSMC	5nm TSMC	4nm TSMC	5nm TSMC	5nm TSMC	7nm TSMC	7nm TSMC	7nm TSMC	14nm GloFo
Platform Name	SP7	SP7	SP5	SP5	SP5	SP6	SP5	SP5	SP5	SP3	SP3	SP3	SP3
Socket	TBD	TBD	LGA 6096 (SP5)	LGA 6096 (SP5)	LGA 6096	LGA 4844	LGA 6096	LGA 6096	LGA 6096	LGA 4094	LGA 4094	LGA 4094	LGA 4094
Max Core Count	TBD	96	128	192	128	64	128	96	96	64	64	64	32
Max Thread Count	TBD	192	256	384	256	128	256	192	192	128	128	128	64
Max L3 Cache	TBD	TBD	1536 MB	384 MB	384 MB	256 MB	256 MB	1152 MB	384 MB	768 MB	256 MB	256 MB	64 MB
Chiplet Design	TBD	8 CCD's (1 CCX per CCD) + 2 IOD?	16 CCD's (1CCX per CCD) + 1 IOD	12 CCD's (1CCX per CCD) + 1 IOD	16 CCD's (1CCX per CCD) + 1 IOD	8 CCD's (1CCX per CCD) + 1 IOD	12 CCD's (1 CCX per CCD) + 1 IOD	12 CCD's (1 CCX per CCD) + 1 IOD	12 CCD's (1 CCX per CCD) + 1 IOD	8 CCD's (1 CCX per CCD) + 1 IOD	8 CCD's (1 CCX per CCD) + 1 IOD	8 CCD's (2 CCX's per CCD) + 1 IOD	4 CCD's (2 CCX's per CCD)
Memory Support	TBD	DDR5-12800	DDR5-6000?	DDR5-6400	DDR5-6400	DDR5-5200	DDR5-5600	DDR5-4800	DDR5-4800	DDR4-3200	DDR4-3200	DDR4-3200	DDR4-2666
Memory Channels	TBD	16-Channel (SP7)	12 Channel (SP5)	12 Channel	12 Channel	6-Channel	12 Channel	12 Channel	12 Channel	8 Channel	8 Channel	8 Channel	8 Channel
PCIe Gen Support	TBD	128-192 PCIe Gen 6	TBD	128 PCIe Gen 5	128 PCIe Gen 5	96 Gen 5	128 Gen 5	128 Gen 5	128 Gen 5	128 Gen 4	128 Gen 4	128 Gen 4	64 Gen 3
TDP (Max)	TBD	~600W	500W (cTDP 600W)	500W (cTDP 450-500W)	400W (cDP 320-400W)	70-225W	320W (cTDP 400W)	400W	400W	280W	280W	280W	200W

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