Intel Core i5 13420H 's Advantages
Higher base frequency (2.1GHz vs 1.7GHz)
Intel Core Ultra 5 135H 's Advantages
Released 11 months late
Better graphics card performance
Higher specification of memory (LPDDR5-7467 vs DDR5-5200)
Larger memory bandwidth (120GB/s vs 76.8GB/s)
Larger L3 cache size (18MB vs 12MB)
More modern manufacturing process (7nm vs 10nm)
Lower TDP (20W vs 35W)