Opteron 6274 's Advantages
Higher base frequency (2.2GHz vs 2.15GHz)
AMD EPYC Embedded 3451 's Advantages
Released 6 years and 3 months late
Higher specification of memory (2666 vs 3)
Newer PCIe version (3 vs 2)
Larger L3 cache size (32MB vs 16MB)
More modern manufacturing process (14nm vs 32nm)
Lower TDP (100W vs 115W)