Intel Core i5 7600K 's Advantages
Integrated graphics card
Higher base frequency (3.8GHz vs 3.5GHz)
Lower TDP (91W vs 140W)
Intel Core i7 7800X 's Advantages
Higher specification of memory (2400 vs 2400)
Larger memory bandwidth (79.47GB/s vs 35.76GB/s)
Larger L3 cache size (8MB vs 6MB)