AMD EPYC 7203 's Advantages
Released 10 months late
Higher base frequency (2.8GHz vs 2.75GHz)
Lower TDP (120W vs 290W)
AMD EPYC 9454 's Advantages
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
Larger L3 cache size (256MB vs 64MB)
More modern manufacturing process (5nm vs 7nm)