AMD EPYC 7643 's Advantages
Released 9 years late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 3)
Higher base frequency (2.3GHz vs 1.8GHz)
Larger L3 cache size (256MB vs 10MB)
More modern manufacturing process (7nm vs 32nm)
Intel Xeon E5 2603 's Advantages
Lower TDP (80W vs 225W)