Intel Core i7 1260U 's Advantages
Better graphics card performance
Lower TDP (9W vs 35W)
Intel Core i5 12600H 's Advantages
Higher specification of memory (LPDDR5-5200 vs LPDDR5-5200)
Higher base frequency (2.7GHz vs 1.1GHz)
Larger L3 cache size (18MB vs 12MB)