Xeon E7 8830 's Advantages
Higher base frequency (2.133GHz vs 2.1GHz)
Lower TDP (105W vs 120W)
AMD EPYC 7251 's Advantages
Released 6 years and 2 months late
Higher specification of memory (2400 vs 1333)
Larger L3 cache size (32MB vs 24MB)
More modern manufacturing process (14nm vs 32nm)