Xeon E7 4820 's Advantages
Lower TDP (105W vs 170W)
AMD EPYC 7351 's Advantages
Released 6 years and 2 months late
Higher specification of memory (2666 vs 1333)
Higher base frequency (2.4GHz vs 2GHz)
Larger L3 cache size (64MB vs 18MB)
More modern manufacturing process (14nm vs 32nm)