AMD EPYC 7601 's Advantages
Released 9 years and 7 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.2GHz vs 2GHz)
More modern manufacturing process (14nm vs 45nm)
Xeon E5405 's Advantages
Lower TDP (80W vs 180W)