Intel Core i7 1250U 's Advantages
Lower TDP (9W vs 45W)
Intel Core i7 12700H 's Advantages
Better graphics card performance
Higher specification of memory (LPDDR5-5200 vs LPDDR5-5200)
Higher base frequency (2.3GHz vs 1.1GHz)
Larger L3 cache size (24MB vs 12MB)