AMD EPYC 9455 's Advantages
Released 15 years and 7 months late
Higher specification of memory (6000 vs 1333)
Newer PCIe version (5 vs 2)
Larger L3 cache size (192MB vs 8MB)
More modern manufacturing process (4nm vs 45nm)
Xeon W5580 's Advantages
Higher base frequency (3.2GHz vs 3.15GHz)
Lower TDP (130W vs 300W)