Intel Core i7 1260P 's Advantages
Higher base frequency (2.1GHz vs 2.0GHz)
Intel Core Ultra 7 255H 's Advantages
Released 2 years and 11 months late
Higher specification of memory (8400 vs 5200)
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (24MB vs 18MB)
More modern manufacturing process (3nm vs 10nm)