Intel Core 3 100U 's Advantages
Integrated graphics card
Higher specification of memory (6400 vs 5200)
Intel Core 7 250U 's Advantages
Released 9 months late
Newer PCIe version (4 vs 4.0)
Higher base frequency (1.9GHz vs 1.2GHz)
Larger L3 cache size (12MB vs 10MB)