AMD Ryzen 9 8945HS's Advantages
Released 11 months late
Better graphics card performance
Higher specification of memory (LPDDR5x-7500 vs DDR5-5200)
Larger memory bandwidth (89.6GB/s vs 83.2GB/s)
Higher base frequency (4.0GHz vs 2.5GHz)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (35W vs 55W)
AMD Ryzen 9 7945HX's Advantages
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (64MB vs 16MB)