AMD EPYC 7261 's Advantages
Released 8 years and 10 months late
Higher specification of memory (2666 vs 1333)
Newer PCIe version (3 vs 2)
Larger L3 cache size (32MB vs 8MB)
More modern manufacturing process (14nm vs 45nm)
Xeon W5590 's Advantages
Higher base frequency (3.333GHz vs 2.5GHz)
Lower TDP (130W vs 170W)