Intel Core i5 7400 's Advantages
Integrated graphics card
Higher base frequency (3.0GHz vs 2.1GHz)
Intel Core i7 14700F 's Advantages
Released 7 years late
Higher specification of memory (DDR5-5600 vs DDR4-2400)
Larger memory bandwidth (89.6GB/s vs 35.76GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (33MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)