AMD EPYC 7643P 's Advantages
Released 9 years late
Higher specification of memory (DDR4-3200 vs DDR4-1866)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 10MB)
Intel Xeon E5 1603 v3 's Advantages
Higher base frequency (2.8GHz vs 2.3GHz)
Lower TDP (140W vs 225W)