Intel Core i3 7100 's Advantages
Integrated graphics card
Higher base frequency (3.9GHz vs 3.7GHz)
Lower TDP (51W vs 125W)
Intel Core i5 12600KF 's Advantages
Released 4 years and 9 months late
Higher specification of memory (DDR5-4800 vs DDR4-400)
Larger memory bandwidth (76.8GB/s vs 35.76GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (20MB vs 3MB)
More modern manufacturing process (10nm vs 14nm)