AMD Ryzen 7 7840H 's Advantages
Better graphics card performance
Higher specification of memory (5600 vs 5500)
Larger memory bandwidth (89.6GB/s vs 44.0GB/s)
Newer PCIe version (4 vs 3.0)
Higher base frequency (3.8GHz vs 2.4GHz)
Larger L3 cache size (16MB vs 4MB)
More modern manufacturing process (4nm vs 6nm)
AMD Ryzen 3 7320U 's Advantages
Lower TDP (15W vs 35W)