Amazon's New EC2 M7a AMD EPYC "Genoa" Instances Deliver Leading Performance In The AWS Cloud

Written by Michael Larabel in Processors on 17 August 2023 at 11:26 AM EDT. Page 2 of 6. 3 Comments.

NAS Parallel Benchmarks benchmark with settings of Test / Class: CG.C. m7a.16xlarge AMD Zen 4 was the fastest.

Right out of the starting gate we see both the M7a and M7i instances shoot well past the current Graviton3(E) performance provided on AWS. Prior generation Zen 3 C6a came up short of Graviton3 while indeed for the NPB tests the M7a performance doubled in this particular test at the same 64 vCPU size thanks to all of the AMD Zen 4 improvements, DDR5 memory, and no SMT.

With such a strong showing out of the M7a, this new instance did deliver the best performance-per-dollar even with the higher hourly rate for these new instances due to the more expensive Genoa processors, higher DDR5 and platform costs, etc.

NAS Parallel Benchmarks benchmark with settings of Test / Class: EP.D. m7a.16xlarge AMD Zen 4 was the fastest.

NAS Parallel Benchmarks benchmark with settings of Test / Class: MG.C. m7a.16xlarge AMD Zen 4 was the fastest.

NAS Parallel Benchmarks benchmark with settings of Test / Class: SP.C. m7a.16xlarge AMD Zen 4 was the fastest.

The M7i Sapphire Rapids instance was also outperforming the Graviton3(E) instances in the NASA NPB benchmarks but not nearly to the extreme of the M7a Genoa instance.

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