Intel Core i7 6900K 's Advantages
Larger memory bandwidth (76.8GB/s vs 35.76GB/s)
Larger L3 cache size (20MB vs 3MB)
Intel Core i3 7100 's Advantages
Released 8 months late
Integrated graphics card
Higher specification of memory (2400 vs 2133)
Higher base frequency (3.9GHz vs 3.2GHz)
Lower TDP (51W vs 140W)