Intel Xeon E3 1226 v3 's Advantages
Higher base frequency (3.3GHz vs 2.25GHz)
Lower TDP (84W vs 225W)
AMD EPYC 7742 's Advantages
Released 5 years and 3 months late
Higher specification of memory (3200 vs 1600)
Newer PCIe version (4 vs 3)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (7nm vs 22nm)