Intel Core i3 9100 's Advantages
Integrated graphics card
Lower TDP (65W vs 95W)
Intel Core i5 9600KF 's Advantages
Higher specification of memory (2666 vs 2400)
Larger memory bandwidth (41.6GB/s vs 37.5GB/s)
Higher base frequency (3.7GHz vs 3.6GHz)
Larger L3 cache size (9MB vs 6MB)