Intel Core i7 7820X 's Advantages
Larger memory bandwidth (79.47GB/s vs 41.6GB/s)
Higher base frequency (3.6GHz vs 3.0GHz)
Intel Core i7 9700F 's Advantages
Released 1 years and 11 months late
Larger L3 cache size (12MB vs 11MB)
Lower TDP (65W vs 140W)