Intel Core Ultra 5 125H's Advantages
Released 4 years and 5 months late
Better graphics card performance
Higher specification of memory (LPDDR5-7467 vs DDR4-2400)
Larger memory bandwidth (120GB/s vs 37.5GB/s)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (18MB vs 8MB)
More modern manufacturing process (7nm vs 14nm)
Intel Core i7 8557U's Advantages
Higher base frequency (1.7GHz vs 1.2GHz)
Lower TDP (15W vs 20W)