AMD EPYC 7643P 's Advantages
Released 11 years and 4 months late
Higher specification of memory (DDR4-3200 vs DDR3)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 8MB)
Intel Xeon E3 1275 v2 's Advantages
Higher base frequency (3.5GHz vs 2.3GHz)
Lower TDP (77W vs 225W)