Intel Core i7 12700 's Advantages
Released 5 years late
Better graphics card performance
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 (25MB vs 3MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i3 7100 's Advantages
Higher base frequency (3.9GHz vs 2.1GHz)
Lower TDP (51W vs 65W)