AMD EPYC 7643 's Advantages
Released 5 years and 5 months late
Higher specification of memory (3200 vs 2133)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (7nm vs 14nm)
Intel Xeon E3 1505M v5 's Advantages
Higher base frequency (2.8GHz vs 2.3GHz)
Lower TDP (45W vs 225W)