Intel Core i3 9100's Advantages
Higher base frequency (3.6GHz vs 2.8GHz)
Intel Core i9 10900's Advantages
Released 1 years and 1 months late
Higher specification of memory (DDR4-2933 vs DDR4-2400)
Larger memory bandwidth (45.8GB/s vs 37.5GB/s)
Larger L3 cache size (20MB vs 6MB)