Xeon 6979P 's Advantages
Released 8 years and 4 months late
Higher specification of memory (8800 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (504MB vs 8MB)
More modern manufacturing process (5nm vs 14nm)
Intel Xeon E3 1585L v5 's Advantages
Higher base frequency (3GHz vs 2.1GHz)
Lower TDP (45W vs 500W)