Intel Xeon E5 2683 v3 's Advantages
Lower TDP (120W vs 500W)
Xeon 6979P 's Advantages
Released 10 years late
Higher specification of memory (8800 vs 2133)
Newer PCIe version (5 vs 3)
Higher base frequency (2.1GHz vs 2GHz)
Larger L3 cache size (504MB vs 35MB)
More modern manufacturing process (5nm vs 22nm)