Intel Core i7 6785R 's Advantages
Higher base frequency (3.3GHz vs 3.0GHz)
Larger L3 cache size (8MB vs 6MB)
Intel Core i5 7400 's Advantages
Released 8 months late
Higher specification of memory (2400 vs 2133)
Larger memory bandwidth (35.76GB/s vs 34.1GB/s)
Newer PCIe version (3.0 vs 3)