AMD EPYC 7551 's Advantages
Released 7 years and 1 months late
Higher specification of memory (2666 vs 1333)
Newer PCIe version (3 vs 2)
Larger L3 cache size (64MB vs 8MB)
More modern manufacturing process (14nm vs 45nm)
Xeon X3480 's Advantages
Higher base frequency (3.066GHz vs 2GHz)
Lower TDP (95W vs 180W)