AMD EPYC 7642 's Advantages
Higher base frequency (2.4GHz vs 2.1GHz)
Larger L3 cache size (256MB vs 82.5MB)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (225W vs 270W)
Intel Xeon Platinum 8454H 's Advantages
Released 3 years and 5 months late
Higher specification of memory (4800 vs 3200)
Newer PCIe version (5 vs 4)