AMD Epyc 9004 (“Genoa”) brings up to 96 Zen 4 cores for data centers, cloud servers and supercomputers in the professional enterprise sector. The manufacturer promises a 94 to 123 percent higher performance in the areas of HPC, cloud and enterprise as well as reduced latencies through even larger and further optimized caches. >Zen 4 premieres in Enterprise
As expected, as part of the live stream event “together we advance_data centers”, AMD presented a total of 14 Epyc 9004 processors based on the new Zen 4 architecture, which celebrated its premiere with Ryzen 7000 (test). The IPC, which was determined using different server workloads, increases by an average of 14 percent compared to Epyc 7003 (“Milan”), according to AMD.
96 cores, 192 threads and 6 TB DDR5-4800
Also unsurprisingly, the top model Epyc 9654/P offers a total of 96 processor cores and 192 threads with a cTDP that can be configured from 320 to 400 watts and works with a power limit of 360 watts ex works. The key data of the series, which AMD highlights as the highlights of the CPUs, are as follows.
- N5 at TSMC
- Zen 4 architecture
- 16 to 96 processor cores
- 12-channel memory interface
- Up to 6 terabytes of DDR5 -4800
- 128 PCIe lanes Gen5 for single socket
- 160 PCIe lanes Gen5 for dual sockets
- 64 CLX lanes
- + 14% IPC*
*)in select loads including SPECrate 2017_int_base, SPECrate 2017_fp_base, and select server workloads.
A lot has happened in a direct comparison of Zen 3 to Zen 4, for example new instructions (AVX-512, BFLOAT16, VNNI) have been added for Epyc 9004. The L2 cache is larger and more effective, and support for faster DDR5 memory and PCIe 5.0 ensures more throughput when transferring data on the platform.
While Epyc 9004 is a 12 channel memory interface for DDR5 with up to 4,800 MT/s, the main memory with a capacity of up to 6 terabytes can also be operated in 2-, 4-, 6-, 8- and 10-channel mode, in particular to use the smaller CPUs to offer more options in terms of total cost.
18 CPUs with 16 to 96 cores and up to 400 watts TDP
Once again, it's one AMD has a broad enterprise portfolio with CPUs ranging in price from $1,083 to $11,805. As usual, these prices are exclusive of taxes and based on a purchase of 1,000 pieces (“1kU pricing”).
The specifications of the 18 models, three of which have a P suffix for corresponding single-socket systems and four with an F suffix, which are optimized for a high clock, read as follows.
Bergamo will follow in 2023 , Genoa-X and Siena
AMD has specified the schedules for the already known offshoots Bergamo, Genoa-X and Siena. Bergamo for cloud servers with a high thread density will appear in the first half of the year and, according to the latest information, will offer up to 128 Zen 4c cores with less cache. Also in the first half of 2023, Genoa-X with stacked 3D V-Cache should follow. Siena as a low-cost offshoot intended for telecommunications and Edge will only come in the second half of the year.
By 2024 at the latest, the new generation “Turin” with Zen 5 architecture should appear.
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AMD server roadmap (Image: AMD)
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AMD Bergamo (image : AMD)
G enoa-X and Siena based on Zen 4 (Image: AMD)