Intel Core i5 1240U 's Advantages
Better graphics card performance
Larger L3 cache size (12MB vs 10MB)
Lower TDP (9W vs 15W)
Intel Core 3 100U 's Advantages
Released 1 years and 11 months late
Higher specification of memory (6400 vs 5200)
Larger memory bandwidth (83.2GB/s vs 76.8GB/s)
Higher base frequency (1.2GHz vs 1.1GHz)