Intel Core i7 6700 's Advantages
Higher base frequency (3.4GHz vs 3.0GHz)
Larger L3 cache size (8MB vs 6MB)
Intel Core i5 7400 's Advantages
Released 1 years and 4 months late
Higher specification of memory (DDR4-2400 vs DDR4-2133)
Larger memory bandwidth (35.76GB/s vs 34.1GB/s)