AMD EPYC Embedded 3351 's Advantages
Released 8 years late
Higher specification of memory (2666 vs 1066)
Newer PCIe version (3 vs 2)
Larger L3 cache size (32MB vs 8MB)
More modern manufacturing process (14nm vs 45nm)
Lower TDP (80W vs 85W)
Xeon EC5509 's Advantages
Higher base frequency (2GHz vs 1.9GHz)