AMD Ryzen 7 7736U 's Advantages
Better graphics card performance
Higher specification of memory (LPDDR5-6400 vs DDR5-5200)
Higher base frequency (27GHz vs 2.3GHz)
Lower TDP (15W vs 55W)
AMD Ryzen 9 7945HX3D 's Advantages
Released 6 months late
Larger memory bandwidth (83.2GB/s vs 76.8GB/s)
Newer PCIe version (5 vs 4.0)
Larger L3 cache size (128MB vs 16MB)