AMD Ryzen 5 8640U 's Advantages
Better graphics card performance
Higher specification of memory (LPDDR5x-7500 vs DDR5-5600)
Higher base frequency (3.5GHz vs 2.4GHz)
Lower TDP (15W vs 45W)
Intel Core i5 14450HX 's Advantages
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (20MB vs 16MB)