AMD EPYC 9454 's Advantages
Released 8 months late
Higher specification of memory (DDR5-4800 vs DDR4-3200)
Newer PCIe version (5 vs 4)
More modern manufacturing process (5nm vs 7nm)
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)