Xeon 6979P 's Advantages
Released 8 years and 7 months late
Higher specification of memory (8800 vs 4)
Newer PCIe version (5 vs 3)
Higher base frequency (2.1GHz vs 1.3GHz)
Larger L3 cache size (504MB vs 1.5MB)
More modern manufacturing process (5nm vs 14nm)
Intel Xeon D 1571 's Advantages
Lower TDP (45W vs 500W)