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SMT Remains Very Advantageous For 5th Gen AMD EPYC Performance
After recently re-visiting the AMD EPYC 9005 series AVX-512 performance, I followed up with some fresh SMT benchmarks looking at the performance benefits and power of toggling Simultaneous Multi-Threading on the 5th Gen AMD EPYC 'Turin' hardware.
Last October after the introduction of the AMD EPYC 9005 series processors I ran some preliminary tests of the Zen 5 SMT performance within Exploring The Zen 5 SMT Performance With The AMD EPYC 9755 "Turin" CPU. A variety of multi-threaded workloads were tested on the EPYC 9575F in its default 64-core / 128-thread configuration and then repeated after disabling SMT support from the BIOS. I would have loved to do a Zen 4 vs. Zen 5 SMT comparison for looking at the difference from thew new AMD processors, but unfortunately this Supermicro motherboard wasn't POST'ing with EPYC 9004 series processors contrary to its reported support on the newest BIOS.
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