Intel Core i3 7100U 's Advantages
Lower TDP (15W vs 45W)
Intel Core i7 7700HQ 's Advantages
Better graphics card performance
Higher specification of memory (DDR4-2400 vs DDR4-2133)
Larger memory bandwidth (37.5GB/s vs 34.1GB/s)
Higher base frequency (2.8GHz vs 2.4GHz)
Larger L3 cache size (6MB vs 3MB)