Intel Core i7 5960X 's Advantages
Larger memory bandwidth (68GB/s vs 42.7GB/s)
Larger L3 cache size (20MB vs 8MB)
Intel Core i7 7740X 's Advantages
Released 2 years and 9 months late
Higher specification of memory (DDR4-2666 vs DDR4-2133)
Higher base frequency (4.3GHz vs 3.0GHz)
More modern manufacturing process (14nm vs 22nm)
Lower TDP (112W vs 140W)