AMD EPYC 7573X 's Advantages
Higher base frequency (2.8GHz vs 2.75GHz)
Larger L3 cache size (768MB vs 256MB)
Lower TDP (280W vs 290W)
AMD EPYC 9454 's Advantages
Released 8 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
More modern manufacturing process (5nm vs 7nm)