AMD EPYC 7642 's Advantages
Released 2 years late
Higher specification of memory (DDR4-3200 vs DDR4)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 8MB)
Intel Xeon E3 1285 v6 's Advantages
Higher base frequency (4.1GHz vs 2.4GHz)
Lower TDP (79W vs 225W)