Intel Xeon E5 1603 v3 's Advantages
Higher base frequency (2.8GHz vs 2.1GHz)
Lower TDP (140W vs 500W)
Xeon 6979P 's Advantages
Released 10 years late
Higher specification of memory (8800 vs 1866)
Newer PCIe version (5 vs 3)
Larger L3 cache size (504MB vs 10MB)
More modern manufacturing process (5nm vs 22nm)