Intel Core i5 7640X 's Advantages
Released 1 years and 9 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (42.7GB/s vs 34.1GB/s)
Intel Core i7 6700K 's Advantages
Integrated graphics card
Larger L3 cache size (8MB vs 6MB)
Lower TDP (91W vs 112W)