Intel Core i7 6700K 's Advantages
Higher specification of memory (2133 vs 1600)
Larger memory bandwidth (34.1GB/s vs 25.6GB/s)
Higher base frequency (4.0GHz vs 3.7GHz)
Larger L3 cache size (8MB vs 3MB)
More modern manufacturing process (14nm vs 22nm)
Intel Core i3 4170 's Advantages
Lower TDP (54W vs 91W)