AMD EPYC 7402 's Advantages
Released 9 years and 6 months late
Higher specification of memory (3200 vs 1066)
Newer PCIe version (4 vs 2)
Higher base frequency (2.8GHz vs 2GHz)
Larger L3 cache size (128MB vs 8MB)
More modern manufacturing process (7nm vs 45nm)
Xeon EC5509 's Advantages
Lower TDP (85W vs 180W)