AMD Ryzen 5 7530U 's Advantages
Lower TDP (15W vs 54W)
AMD Ryzen 5 7640HS 's Advantages
Better graphics card performance
Higher specification of memory (7500 vs 4267)
Larger memory bandwidth (89.6GB/s vs 51.2GB/s)
Newer PCIe version (4.0 vs 3.0)
Higher base frequency (4.3GHz vs 2.0GHz)
More modern manufacturing process (4nm vs 7nm)