ex amd chip architect jim keller unveils next gen zen 5 cpu
ex amd chip architect jim keller unveils next gen zen 5 cpu

The first performance, frequency, and power projections for the upcoming Zen 5 architecture, which is anticipated to debut next year, have been made public by Jim Keller, who collaborated with AMD on designing several Zen CPU architectures.

Next-Gen Zen 5 Architecture Performance, Power, and CPU Frequency Estimates from AMD’s Former Chip Architect, Jim Keller

Jim Keller, the acting CEO of Tenstorrent, announced an event at an Indian university. He also discussed how their next-generation RISC-V architecture, which will be used in the forthcoming Ascalaon chips, is progressing. The next-generation Zen 5 CPU IP for the next-generation Ryzen & EPYC chips was shared by Jim throughout the keynote, along with some other both internal and external architecture performance predictions.

As we begin with the performance details, it’s important to remember that they are only predictions and that the result may change significantly. Jim reports that Tenstorrent predicts AMD’s Zen 5 core architecture will be roughly 30% faster than Zen 4. This represents a significant improvement over Zen 3 cores, as the Zen 4 architecture demonstrates. Zen 2 was a 6% improvement over Zen 1, while Zen 3 was a massive 30% improvement over Zen 2.

amd zen 5 cpu architecture estimates jim keller image 01

Each performance prediction relies on the SPEC2K17 INT workload, which might not be an appropriate measure for workloads encountered in the real world but is a metric frequently employed in assessing performance in the server ecosystem. The AMD Zen 5 is expected to outperform competing chips by 18 to 20%, including the NVIDIA Grace and Intel Xeon Sapphire Rapids.

The complete list of results is given below; keep in mind that these are all server-level products, not the ones that each vendor would sell to consumers:

Tenstorrent Scalar Competition Landscape (SPEC2K17 INT Rate 1 Performance Estimates):

AMD NaplesZen 14.30100%
AMD RomeZen 24.56106%
AMD MilanZen 35.91137%
AMD GenoaZen 46.80158%
AMD TurinZen 58.84205%

Tenstorrent anticipates AMD Zen 5 CPUs to be the first to approach or surpass the 4 GHz mark on the server platform, which makes the performance and charts of frequencies equally fascinating. It appears that Zen 5 will be the first to achieve this goal unless Intel can step it up with Emerald Rapids, which will be released later this year. With respective boost clocks of 3.70 and 3.80 GHz, the EPYC Genoa and Intel Sapphire Rapids families come close to this target. Still, it appears that Zen 5 will be the first to achieve it, barring an improvement from Intel with Emerald Rapids, which will be released later this year.

zen 5 cpu core roadmap

The estimated power metrics won’t change, but the 30% improvement in output that we mentioned above will result in even greater efficiency because of a 4nm/3nm process node.

AMD Zen 5 in 2024 Will Include New Microarchitecture V-Cache & Compute Variants-

AMD has officially announced the expected debut of the new Zen 5 architecture in 2024. The processing unit was built from the ground up with a new microarchitecture focused on offering improved speed and effectiveness, a re-pipelined front-end, and the broad gap in addition to Integrated AI and machine learning optimization. The first generation of Zen 5 CPUs will be available in three flavors (Zen 5 / Zen 5 V-Cache / Zen 5C). Key characteristics of Zen 5 CPUs include:

  • Improved effectiveness and efficiency
  • Wide issue and new front-end pipeline
  • AI and machine learning optimizations are integrated.
zen 5 microarchitecture

Therefore, if we experience a similar increase in performance to what we did with Zen 3, users of Ryzen’s consumer-level processors will find it extremely significant. However, multi-threaded efficiency might be even better as this particular performance metric only considers single-threaded prowess. Once more, it’s important to remember that these are only estimates. Still, AMD has repeatedly shown that it can outperform initial projections by a sizable margin. Since Zen 5 is an entirely new architecture created from the bottom up, one ought to be more than optimistic.

AMD EPYC CPU Families:

Family BrandingEPYC 11K?EPYC 10K?EPYC 9000?EPYC 9000?EPYC 9004EPYC 9004EPYC 7004EPYC 7003EPYC 7002EPYC 7001
Family Launch2025+202420232023202320222022202120192017
CPU ArchitectureZen 6?Zen 5Zen 4Zen 4CZen 4 V-CacheZen 4Zen 3Zen 3Zen 2Zen 1
Process NodeTBD3nm TSMC?5nm TSMC4nm TSMC5nm TSMC5nm TSMC7nm TSMC7nm TSMC7nm TSMC14nm GloFo
SocketTBDLGA 6096 (SP5)
LGA 4844LGA 6096LGA 6096LGA 6096LGA 4094LGA 4094LGA 4094LGA 4094
Max Core Count384?128?64128969664646432
Max Thread Count768?256?12825619219212812812864
Max L3 CacheTBDTBD256 MB?TBD1152 MB384 MB768 MB256 MB256 MB64 MB
Chiplet DesignTBDTBD8 CCD’s (1CCX per CCD) + 1 IOD12 CCD’s (1 CCX per CCD) + 1 IOD12 CCD’s (1 CCX per CCD) + 1 IOD12 CCD’s (1 CCX per CCD) + 1 IOD8 CCD’s with 3D V-Cache (1 CCX per CCD) + 1 IOD8 CCD’s (1 CCX per CCD) + 1 IOD8 CCD’s (2 CCX’s per CCD) + 1 IOD4 CCD’s (2 CCX’s per CCD)
Memory SupportTBDDDR5-6000?DDR5-5200DDR5-5600?DDR5-4800DDR5-4800DDR4-3200DDR4-3200DDR4-3200DDR4-2666
Memory ChannelsTBD12 Channel (SP5)
6-Channel (SP6)
6-Channel12 Channel12 Channel12 Channel8 Channel8 Channel8 Channel8 Channel
PCIe Gen SupportTBDTBD96 Gen 5160 Gen 5128 Gen 5128 Gen 5128 Gen 4128 Gen 4128 Gen 464 Gen 3
TDP (Max)TBD480W (cTDP 600W)70-225W320W (cTDP 400W)400W400W280W280W280W200W

News source: wccftech.com


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