Xeon 6979P 's Advantages
Released 10 years late
Higher specification of memory (8800 vs 1600)
Newer PCIe version (5 vs 3)
Higher base frequency (2.1GHz vs 1.6GHz)
Larger L3 cache size (504MB vs 15MB)
More modern manufacturing process (5nm vs 22nm)
Intel Xeon E5 2603 v3 's Advantages
Lower TDP (85W vs 500W)