Intel Core 7 240H 's Advantages
Higher base frequency (2.5GHz vs 2.4GHz)
Lower TDP (45W vs 55W)
Intel Core Ultra 7 255HX 's Advantages
Integrated graphics card
Higher specification of memory (6400 vs 5200)
Larger memory bandwidth (102.4GB/s vs 83.2GB/s)
More modern manufacturing process (3nm vs 10nm)