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 4 of 6. 3 Comments.
nekRS benchmark with settings of Input: Kershaw. m7a.16xlarge AMD Zen 4 was the fastest.
nekRS benchmark with settings of Input: Kershaw. m7a.16xlarge AMD Zen 4 was the fastest.
nekRS benchmark with settings of Input: TurboPipe Periodic. m7i.16xlarge Intel SPR was the fastest.
nekRS benchmark with settings of Input: TurboPipe Periodic. m7i.16xlarge Intel SPR was the fastest.
LAMMPS Molecular Dynamics Simulator benchmark with settings of Model: 20k Atoms. m7g.16xlarge Graviton3 was the fastest.
LAMMPS Molecular Dynamics Simulator benchmark with settings of Model: 20k Atoms. m7g.16xlarge Graviton3 was the fastest.

Generationally the 4th Gen AMD EPYC instances on AWS are a terrific upgrade over Zen 3, just as we've seen with all the bare metal Genoa(X) testing. On a performance-per-dollar basis the increased costs of M7a are justified over prior generation EPYC instances but for some workloads the in-house Graviton instances can be more cost effective.

srsRAN Project benchmark with settings of Test: PUSCH Processor Benchmark, Throughput Total. m7a.16xlarge AMD Zen 4 was the fastest.

In other cases of software being better optimized for x86_64, the m7a.16xlarge instance could be more than twice as fast as Graviton3(E) 16xlarge instances.

Coremark benchmark with settings of CoreMark Size 666, Iterations Per Second. m7a.16xlarge AMD Zen 4 was the fastest.
Coremark benchmark with settings of CoreMark Size 666, Iterations Per Second. m7a.16xlarge AMD Zen 4 was the fastest.

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