Opteron 2218 HE 's Advantages
Higher base frequency (2.6GHz vs 1.9GHz)
Lower TDP (68W vs 80W)
AMD EPYC Embedded 3351 '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)