Intel Core i5 5200U 's Advantages
Higher base frequency (2.2GHz vs 1.7GHz)
Lower TDP (15W vs 57W)
Intel Core Ultra 7 155U 's Advantages
Released 8 years and 11 months late
Higher specification of memory (7467 vs 1600)
Larger memory bandwidth (120GB/s vs 25.6GB/s)
Newer PCIe version (4.0 vs 2.0)
Larger L3 cache size (12MB vs 3MB)
More modern manufacturing process (7nm vs 14nm)