Intel Core i7 14700 's Advantages
Released 5 years late
Integrated graphics card
Higher specification of memory (DDR5-5600 vs DDR4-2666)
Larger memory bandwidth (89.6GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (33MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 9400F 's Advantages
Higher base frequency (2.9GHz vs 2.1GHz)