Opteron 1385 's Advantages
Higher base frequency (2.7GHz vs 2.15GHz)
AMD EPYC Embedded 3451 's Advantages
Released 8 years and 8 months late
Higher specification of memory (2666 vs 1333)
Newer PCIe version (3 vs 2)
Larger L3 cache size (32MB vs 6MB)
More modern manufacturing process (14nm vs 45nm)
Lower TDP (100W vs 115W)