AMD EPYC 7643P 's Advantages
Released 9 years late
Higher specification of memory (DDR4-3200 vs DDR4-2133)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 25MB)
Intel Xeon E5 2663 v3 's Advantages
Higher base frequency (2.8GHz vs 2.3GHz)
Lower TDP (105W vs 225W)