AMD Ryzen 9 5900H 's Advantages
Integrated graphics card
Higher specification of memory (LPDDR4-4266 vs DDR5-5600)
AMD Ryzen 9 PRO 8945HS 's Advantages
Released 3 years late
Newer PCIe version (4 vs 3.0)
Higher base frequency (4GHz vs 3.3GHz)
More modern manufacturing process (4nm vs 7nm)