AMD Ryzen 7 8840U 's Advantages
Better graphics card performance
Higher specification of memory (7500 vs 7467)
Higher base frequency (3.3GHz vs 1.2GHz)
More modern manufacturing process (4nm vs 7nm)
Lower TDP (30W vs 65W)
Intel Core Ultra 5 125H 's Advantages
Larger memory bandwidth (120GB/s vs 89.6GB/s)
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (18MB vs 16MB)