Intel Xeon E3 1280 v5 's Advantages
Higher base frequency (3.7GHz vs 3.55GHz)
Lower TDP (80W vs 280W)
AMD EPYC 9355 's Advantages
Released 9 years late
Higher specification of memory (6000 vs 4)
Newer PCIe version (5 vs 3)
Larger L3 cache size (256MB vs 8MB)
More modern manufacturing process (4nm vs 14nm)