Intel Core i9 12900KS 's Advantages
Released 3 years and 3 months late
Integrated graphics card
Higher specification of memory (DDR5-4800 vs DDR4-2666)
Larger memory bandwidth (76.8GB/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 (30MB vs 9MB)
More modern manufacturing process (10nm vs 14nm)
Intel Core i5 9400F 's Advantages
Lower TDP (65W vs 150W)