Intel Core i7 14700K 's Advantages
Released 4 years and 9 months late
Integrated graphics card
Higher specification of memory (5600 vs 2666)
Larger memory bandwidth (89.6GB/s vs 41.6GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (3.4GHz vs 2.9GHz)
Larger L3 cache size (33MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 9400F 's Advantages
Lower TDP (65W vs 125W)