Intel Core i7 1355U's Advantages
Lower TDP (12W vs 20W)
Intel Core Ultra 5 135H's Advantages
Released 11 months late
Better graphics card performance
Higher specification of memory (LPDDR5-7467 vs LPDDR5-6400)
Larger memory bandwidth (120GB/s vs 89.6GB/s)
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (18MB vs 12MB)
More modern manufacturing process (7nm vs 10nm)