Intel Core i5 12600HX 's Advantages
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (2.5GHz vs 1.7GHz)
Larger L3 cache size (18MB vs 12MB)
Intel Core i7 1355U 's Advantages
Released 8 months late
Better graphics card performance
Higher specification of memory (LPDDR5-6400 vs DDR5-4800)
Larger memory bandwidth (89.6GB/s vs 76.8GB/s)
Lower TDP (12W vs 45W)