Intel Core i5 12400 's Advantages
Higher base frequency (2.5GHz vs 2.0GHz)
Intel Core i9 14900 's Advantages
Released 2 years late
Better graphics card performance
Higher specification of memory (5600 vs 4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Larger L3 cache size (36MB vs 18MB)