Xeon 6979P 's Advantages
Released 11 years and 10 months late
Higher specification of memory (8800 vs 1600)
Newer PCIe version (5 vs 2)
Larger L3 cache size (504MB vs 8MB)
More modern manufacturing process (5nm vs 32nm)
Opteron 6386 SE 's Advantages
Higher base frequency (2.8GHz vs 2.1GHz)
Lower TDP (140W vs 500W)