AMD EPYC 7643 's Advantages
Released 7 years and 9 months late
Higher specification of memory (3200 vs 4)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (7nm vs 22nm)
Intel Xeon E3 1285 v3 's Advantages
Higher base frequency (3.6GHz vs 2.3GHz)
Lower TDP (84W vs 225W)