Intel Core i5 10400H 's Advantages
Higher base frequency (2.6GHz vs 1.2GHz)
Intel Core 3 100U 's Advantages
Released 3 years and 9 months late
Better graphics card performance
Higher specification of memory (LPDDR5-6400 vs DDR4-2933)
Larger memory bandwidth (83.2GB/s vs 45.8GB/s)
Newer PCIe version (4.0 vs 3.0)
Larger L3 cache size (10MB vs 8MB)
More modern manufacturing process (10nm vs 14nm)
Lower TDP (12W vs 45W)