Xeon Platinum 8280 's Advantages
Higher base frequency (2.7GHz vs 2.3GHz)
Lower TDP (205W vs 225W)
AMD EPYC 7643P 's Advantages
Released 4 years and 9 months late
Higher specification of memory (3200 vs 4)
Larger L3 cache size (256MB vs 38.5MB)
More modern manufacturing process (7nm vs 14nm)