Intel Core i7 6785R 's Advantages
Integrated graphics card
Higher base frequency (3.3GHz vs 2.9GHz)
Intel Core i5 9400F 's Advantages
Released 2 years and 8 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (41.6GB/s vs 34.1GB/s)
Newer PCIe version (3.0 vs 3)
Larger L3 cache size (9MB vs 8MB)