Intel Core i9 7920X 's Advantages
Higher specification of memory (2666 vs 2400)
Larger memory bandwidth (85GB/s vs 37.5GB/s)
Larger L3 cache size (17MB vs 6MB)
Intel Core i3 8100 's Advantages
Integrated graphics card
Higher base frequency (3.6GHz vs 2.9GHz)
Lower TDP (65W vs 140W)