Intel Core i7 5960X 's Advantages
Higher base frequency (3.0GHz vs 2.6GHz)
Lower TDP (140W vs 165W)
Intel Core i9 7980XE 's Advantages
Released 3 years and 1 months late
Higher specification of memory (DDR4-2666 vs DDR4-2133)
Larger memory bandwidth (79.47GB/s vs 68GB/s)
Larger L3 cache size (25MB vs 20MB)
More modern manufacturing process (14nm vs 22nm)