AMD EPYC 9684X Genoa-X Provides Incredible HPC Performance

Written by Michael Larabel in Processors on 19 July 2023 at 09:00 AM EDT. Page 4 of 8. 17 Comments.
RELION benchmark with settings of Test: Basic, Device: CPU. EPYC 9684X 2P - Power 400W was the fastest.
RELION benchmark with settings of Test: Basic, Device: CPU. EPYC 9684X 2P - Power 400W was the fastest.

With RELION there was very nice improvement in performance going from the Xeon Max caching mode to HBM-only, but ultimately that only allowed the Xeon Max 9480 processors to align with the EPYC Genoa~Bergamo performance. AMD EPYC Genoa-X easily ran much faster.

Algebraic Multi-Grid Benchmark benchmark with settings of . Xeon Max 9480 2P - HBM Only was the fastest.
Algebraic Multi-Grid Benchmark benchmark with settings of . Xeon Max 9480 2P - HBM Only was the fastest.
Algebraic Multi-Grid Benchmark benchmark with settings of . Xeon Max 9480 2P - HBM Only was the fastest.

From Milan-X to Genoa-X is an incredible generational improvement thanks to the larger 3D V-Cache, AVX-512, 12 channels of DDR5 memory, and the other Zen 4 enhancements. Genoa-X remains very competitive too when it comes to the CPU performance-per-Watt. With this algebraic multi-grid solver the Xeon Max 9480 2P managed to take up another win when functioning in HBM-only mode.

High Performance Conjugate Gradient benchmark with settings of X Y Z: 104 104 104, RT: 60. Xeon Max 9480 2P - HBM Only was the fastest.

With the default problem set size for HPCG, the Xeon Max 9480 2P processors were able to outperform the EPYC 9684X Genoa-X processors...

High Performance Conjugate Gradient benchmark with settings of X Y Z: 144 144 144, RT: 60. EPYC 9684X 2P - Power 400W was the fastest.
High Performance Conjugate Gradient benchmark with settings of X Y Z: 160 160 160, RT: 60. Xeon Platinum 8490H 2P was the fastest.
High Performance Conjugate Gradient benchmark with settings of X Y Z: 192 192 192, RT: 60. EPYC 9684X 2P - Power 400W was the fastest.

But at the larger HPCG problem sizes, the Xeon Max 9468 with just 64GB of HBM2e per 56 cores / 112 threads was not enough to successfully run the upstream HPCG benchmark. In the Xeon Max 9480 2P HBM-caching mode, the SPR HBM2e began to fall behind the 60-core Xeon Platinum 8490H processors and the EPYC 9684X was competing well with the Sapphire Rapids Xeon Platinum 8490H model.


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