AMD Ryzen 3 7320U 's Advantages
Higher specification of memory (LPDDR5-5500 vs DDR5-5200)
Lower TDP (15W vs 55W)
AMD Ryzen 9 7945HX 's Advantages
Larger memory bandwidth (83.2GB/s vs 44.0GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (2.5GHz vs 2.4GHz)
Larger L3 cache size (64MB vs 4MB)