Intel Core i7 6700 's Advantages
Integrated graphics card
Higher base frequency (3.4GHz vs 3.0GHz)
Intel Core i7 9700F 's Advantages
Released 3 years and 7 months late
Higher specification of memory (DDR4-2666 vs DDR4-2133)
Larger memory bandwidth (41.6GB/s vs 34.1GB/s)
Larger L3 cache size (12MB vs 8MB)