There’s a couple “obvious” things that would cause a difference.
1st. the Epyc is 96 cores vs 32 for the xeon. That’s a 3x difference right there. Secondly, the Epyc has 384mb of L3 cache compared to 48 for the intel CPU. If the model first fully or mostly in cache, that will mean that the xeon is having to use main memory a lot more which will be a bunch slower. Thirdly, although the Epyc is only 2.4 ghz base, it has a 3.5 ghz all core turbo which could add another 50% performance.
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