8 vs. 12 Channel DDR5-6000 Memory Performance With AMD 5th Gen EPYC

Written by Michael Larabel in Memory on 20 November 2024 at 11:40 AM EST. Page 3 of 7. 29 Comments.
OpenRadioss benchmark with settings of Model: Chrysler Neon 1M. 12c DDR5-6000 was the fastest.
OpenRadioss benchmark with settings of Model: INIVOL and Fluid Structure Interaction Drop Container. 12c DDR5-6000 was the fastest.
SPECFEM3D benchmark with settings of Model: Water-layered Halfspace. 12c DDR5-6000 was the fastest.
srsRAN Project benchmark with settings of Test: PUSCH Processor Benchmark, Throughput Total. 8c DDR5-6000 was the fastest.
srsRAN Project benchmark with settings of Test: PDSCH Processor Benchmark, Throughput Total. 8c DDR5-6000 was the fastest.
John The Ripper benchmark with settings of Test: bcrypt. 12c DDR5-6000 was the fastest.
John The Ripper benchmark with settings of Test: HMAC-SHA512. 12c DDR5-6000 was the fastest.

Moving beyond the HPC workloads, the benefits of 8 vs. 12 channel DDR5-6000 memory for this EPYC 9005 series 1P server there was less of a difference.

Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Slow. 12c DDR5-6000 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Very Fast. 12c DDR5-6000 was the fastest.
Kvazaar benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Ultra Fast. 8c DDR5-6000 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 3, Input: Bosphorus 4K. 12c DDR5-6000 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 13, Input: Bosphorus 4K. 12c DDR5-6000 was the fastest.
SVT-AV1 benchmark with settings of Encoder Mode: Preset 8, Input: Beauty 4K 10-bit. 12c DDR5-6000 was the fastest.
uvg266 benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Very Fast. 12c DDR5-6000 was the fastest.
uvg266 benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Ultra Fast. 12c DDR5-6000 was the fastest.
VVenC benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Fast. 12c DDR5-6000 was the fastest.
VVenC benchmark with settings of Video Input: Bosphorus 4K, Video Preset: Faster. 12c DDR5-6000 was the fastest.

For those considering an AMD EPYC 9005 server for a lot of video encoding/transcoding, in a variety of video encode benchmarks with 4K content on this EPYC Turin server there wasn't much of a benefit going from eight to twelve DDR5-6000 RDIMMs.

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