AMD EPYC 7642 's Advantages
Released 118 years and 7 months late
Newer PCIe version (4 vs 3)
Higher base frequency (2.4GHz vs 1.2GHz)
Larger L3 cache size (256MB vs 16MB)
More modern manufacturing process (7nm vs 16nm)
Centaur CHA 's Advantages
Lower TDP (70W vs 225W)