Intel Core i3 9300 's Advantages
Integrated graphics card
Higher base frequency (3.7GHz vs 3.6GHz)
Lower TDP (62W vs 95W)
Intel Core i9 9900KF 's Advantages
Higher specification of memory (2666 vs 2400)
Larger memory bandwidth (41.6GB/s vs 37.5GB/s)
Larger L3 cache size (16MB vs 8MB)