Intel Xeon E5 2699 v3's Advantages
Larger L3 cache size (45MB vs 25MB)
Intel Core i7 6950X's Advantages
Released 1 years and 8 months late
Newer PCIe version (3.0 vs 3)
Higher base frequency (3.0GHz vs 2.3GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (140W vs 145W)