Intel Core i5 9400H Advantages
Higher base frequency (2.5GHz vs 1.7GHz)
Intel Core Ultra 5 225H Advantages
Released 5 years and 9 months late
Better graphics card performance
Higher specification of memory (8400 vs 2666)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (18MB vs 8MB)
More modern manufacturing process (3nm vs 14nm)
Lower TDP (28W vs 45W)