Intel Xeon E5 2603 's Advantages
Lower TDP (80W vs 120W)
AMD EPYC 7251 's Advantages
Released 5 years and 3 months late
Higher specification of memory (2400 vs 3)
Higher base frequency (2.1GHz vs 1.8GHz)
Larger L3 cache size (32MB vs 10MB)
More modern manufacturing process (14nm vs 32nm)