Intel Core i3 12100 's Advantages
Integrated graphics card
Newer PCIe version (5.0 vs 4)
Higher base frequency (3.3GHz vs 1.7GHz)
Intel Core Ultra 7 155UL 's Advantages
Released 2 years and 3 months late
Higher specification of memory (5600 vs 4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (15W vs 60W)