Opteron 2218 HE 's Advantages
Higher base frequency (2.6GHz vs 2.5GHz)
AMD EPYC Embedded 3251 's Advantages
Released 11 years late
Higher specification of memory (2666 vs 2)
Newer PCIe version (3 vs 1)
More modern manufacturing process (14nm vs 90nm)
Lower TDP (55W vs 68W)