Intel Core i9 11900K's Advantages
Released 10 months late
Better graphics card performance
Higher specification of memory (DDR4-3200 vs DDR4-2666)
Larger memory bandwidth (50GB/s vs 41.6GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (16MB vs 8MB)
Intel Core i3 10300's Advantages
Higher base frequency (3.7GHz vs 3.5GHz)
Lower TDP (65W vs 125W)