AMD EPYC 7451 's Advantages
Lower TDP (180W vs 320W)
AMD EPYC 9184X 's Advantages
Released 6 years late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Higher base frequency (3.55GHz vs 2.3GHz)
Larger L3 cache size (768MB vs 64MB)
More modern manufacturing process (5nm vs 14nm)