Opteron 6168 's Advantages
Lower TDP (115W vs 240W)
AMD EPYC 7663P 's Advantages
Released 13 years and 6 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
Higher base frequency (2GHz vs 1.9GHz)
Larger L3 cache size (256MB vs 12MB)
More modern manufacturing process (7nm vs 45nm)