AMD Ryzen 7 Pro 6850U 's Advantages
Better graphics card performance
Higher specification of memory (6400 vs 5200)
Lower TDP (28W vs 75W)
AMD Ryzen 9 7845HX 's Advantages
Released 9 months late
Larger memory bandwidth (83.2GB/s vs 76.8GB/s)
Newer PCIe version (5.0 vs 4.0)
Higher base frequency (3.0GHz vs 2.7GHz)
Larger L3 cache size (64MB vs 16MB)
More modern manufacturing process (5nm vs 6nm)