Intel Core i5 10400H 's Advantages
Lower TDP (45W vs 55W)
Intel Core Ultra 9 275HX 's Advantages
Released 4 years and 9 months late
Higher specification of memory (6400 vs 2933)
Larger memory bandwidth (102.4GB/s vs 45.8GB/s)
Newer PCIe version (5 vs 3.0)
Higher base frequency (2.7GHz vs 2.6GHz)
Larger L3 cache size (24MB vs 8MB)
More modern manufacturing process (3nm vs 14nm)