Opteron 6276 's Advantages
Lower TDP (115W vs 240W)
AMD EPYC 7473X 's Advantages
Released 10 years and 4 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Higher base frequency (2.8GHz vs 2.3GHz)
Larger L3 cache size (768MB vs 8MB)
More modern manufacturing process (7nm vs 32nm)