Xeon 6979P 's Advantages
Released 9 years and 3 months late
Higher specification of memory (8800 vs 1866)
Newer PCIe version (5 vs 3)
Larger L3 cache size (504MB vs 6MB)
More modern manufacturing process (5nm vs 14nm)
Intel Xeon E3 1285L v4 's Advantages
Higher base frequency (3.4GHz vs 2.1GHz)
Lower TDP (65W vs 500W)