AMD EPYC 7282 's Advantages
Higher base frequency (2.8GHz vs 2.75GHz)
Lower TDP (120W vs 290W)
AMD EPYC 9454 's Advantages
Released 3 years and 3 months late
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)