Intel Core i3 12300 's Advantages
Integrated graphics card
Higher base frequency (3.5GHz vs 3.2GHz)
Lower TDP (60W vs 125W)
Intel Core i9 12900KF 's Advantages
Higher specification of memory (4800 vs 4800)
Newer PCIe version (5.0 vs 5)
Larger L3 cache size (30MB vs 12MB)