ECC DDR5-4800 vs. DDR5-5200 Memory Performance For AMD Ryzen Zen 4

Written by Michael Larabel in Memory on 6 May 2024 at 02:30 PM EDT. Page 2 of 4. 7 Comments.
RAMspeed SMP benchmark with settings of Type: Add, Benchmark: Integer. 2 x 32GB DDR5-5200 was the fastest.
RAMspeed SMP benchmark with settings of Type: Copy, Benchmark: Integer. 2 x 32GB DDR5-5200 was the fastest.
RAMspeed SMP benchmark with settings of Type: Scale, Benchmark: Integer. 2 x 32GB DDR5-5200 was the fastest.
MBW benchmark with settings of Test: Memory Copy, Array Size: 8192 MiB. 2 x 32GB DDR5-5200 was the fastest.
MBW benchmark with settings of Test: Memory Copy, Fixed Block Size, Array Size: 4096 MiB. 2 x 32GB DDR5-5200 was the fastest.
MBW benchmark with settings of Test: Memory Copy, Fixed Block Size, Array Size: 8192 MiB. 2 x 32GB DDR5-5200 was the fastest.

Of course, in the various synthetic memory benchmarks there is clear benefit from the faster memory...

NAS Parallel Benchmarks benchmark with settings of Test / Class: BT.C. 2 x 32GB DDR5-5200 was the fastest.
NAS Parallel Benchmarks benchmark with settings of Test / Class: CG.C. 2 x 32GB DDR5-5200 was the fastest.
NAS Parallel Benchmarks benchmark with settings of Test / Class: IS.D. 2 x 32GB DDR5-5200 was the fastest.
NAS Parallel Benchmarks benchmark with settings of Test / Class: LU.C. 2 x 32GB DDR5-5200 was the fastest.
NAS Parallel Benchmarks benchmark with settings of Test / Class: MG.C. 2 x 32GB DDR5-5200 was the fastest.
NAS Parallel Benchmarks benchmark with settings of Test / Class: SP.C. 2 x 32GB DDR5-5200 was the fastest.

For demanding memory intensive workloads like NASA's NPB benchmarks, the faster memory does translate into measurably better performance for most of the sub-tests.

Quicksilver benchmark with settings of Input: CORAL2 P1. 2 x 32GB DDR5-4800 was the fastest.
NAMD benchmark with settings of Input: ATPase with 327,506 Atoms. 2 x 32GB DDR5-5200 was the fastest.

For not all HPC/server workloads did it translate into a measurable difference.

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