AMD EPYC 4585PX & EPYC 4565P With DDR5-4800 vs. DDR5-5600 Performance

Written by Michael Larabel in Memory on 29 May 2025 at 10:30 AM EDT. Page 2 of 6. 5 Comments.

For those looking at the EPYC 4005 series for a CI/CD build environment or similar build box, opting for DDR5-5600 over DDR5-4800 didn't make much of a difference here for these 16-core EPYC 4005P processors. Both the EPYC 4585PX and EPYC 4565P processors were delivering stellar performance over the EPYC 4004 series equivalents and much faster than the Xeon 6369P processor that is the Xeon 6300 series with a measly 8-cores.

👁 Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Llama-3.1-Tulu-3-8B-Q8_0, Test: Prompt Processing 512. EPYC 4585PX was the fastest.

👁 Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Mistral-7B-Instruct-v0.3-Q8_0, Test: Prompt Processing 512. EPYC 4585PX was the fastest.

👁 Llama.cpp benchmark with settings of Backend: CPU BLAS, Model: Mistral-7B-Instruct-v0.3-Q8_0, Test: Prompt Processing 2048. EPYC 4585PX @ DDR5-4800 was the fastest.

For those looking at the AMD EPYC 4005 processors for CPU-based AI inferencing at the edge, this is one of the workloads meanwhile that can see some measurable benefit from using the DDR5-5600 memory supported by these new Grado processors. But even if you are using Grado with DDR5-4800, there still is a big generational improvement and especially over the Xeon 6300 series competition.

👁 PyTorch benchmark with settings of Device: CPU, Batch Size: 16, Model: ResNet-152. EPYC 4585PX was the fastest.

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URL: https://www.phoronix.com/review/amd-epyc-4005-ddr5-benchmarks/2

⇱ AMD EPYC 4585PX & EPYC 4565P With DDR5-4800 vs. DDR5-5600 Performance Review - Phoronix

AMD EPYC 4585PX & EPYC 4565P With DDR5-4800 vs. DDR5-5600 Performance