Intel Core i7 7500U Advantages
Better graphics card performance
Higher base frequency (2.7GHz vs 2.6GHz)
Lower TDP (15W vs 45W)
Intel Core i5 10400H Advantages
Released 3 years and 8 months late
Higher specification of memory (2933 vs 2133)
Larger memory bandwidth (45.8GB/s vs 34.1GB/s)
Larger L3 cache size (8MB vs 4MB)