Xeon E 2478 's Advantages
Released 6 years and 6 months late
Higher specification of memory (4800 vs 2666)
Newer PCIe version (5 vs 3)
Higher base frequency (2.8GHz vs 2GHz)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (80W vs 180W)
AMD EPYC 7551P 's Advantages
Larger L3 cache size (64MB vs 24MB)