AMD EPYC 7543P 's Advantages
Higher base frequency (2.8GHz vs 2.75GHz)
Lower TDP (225W vs 290W)
AMD EPYC 9454P 's Advantages
Released 1 years and 8 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)
More modern manufacturing process (5nm vs 7nm)