AMD EPYC 7451 's Advantages
Released 7 years and 3 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Higher base frequency (2.3GHz vs 2GHz)
Larger L3 cache size (64MB vs 12MB)
More modern manufacturing process (14nm vs 32nm)
Intel Xeon L5638 's Advantages
Lower TDP (60W vs 180W)