AMD EPYC 7281 's Advantages
Larger L3 cache size (32MB vs 24MB)
Xeon E 2478 's Advantages
Released 6 years and 6 months late
Higher specification of memory (DDR5-4800 vs DDR4-2666)
Newer PCIe version (5 vs 3)
Higher base frequency (2.8GHz vs 2.1GHz)
Lower TDP (80W vs 170W)