AMD EPYC 7643 's Advantages
Released 7 years and 6 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 15MB)
More modern manufacturing process (7nm vs 22nm)
Intel Xeon E5 2643 v2 's Advantages
Higher base frequency (3.5GHz vs 2.3GHz)
Lower TDP (130W vs 225W)