Intel Core i3 12100 's Advantages
Released 2 years and 9 months late
Better graphics card performance
Higher specification of memory (4800 vs 2400)
Larger memory bandwidth (76.8GB/s vs 37.5GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (60W vs 65W)
Intel Core i3 9100 's Advantages
Higher base frequency (3.6GHz vs 3.3GHz)