Intel Core i7 8700 's Advantages
Integrated graphics card
Lower TDP (65W vs 165W)
Intel Core i9 9920X 's Advantages
Released 1 years late
Larger memory bandwidth (85GB/s vs 41.6GB/s)
Higher base frequency (3.5GHz vs 3.2GHz)
Larger L3 cache size (19MB vs 12MB)