AMD EPYC 7251 's Advantages
Released 10 years and 4 months late
Higher specification of memory (2400 vs 667)
Newer PCIe version (3 vs 1)
More modern manufacturing process (14nm vs 90nm)
Opteron 8218 HE 's Advantages
Higher base frequency (2.6GHz vs 2.1GHz)
Lower TDP (68W vs 120W)