AMD Ryzen 9 7845HX 's Advantages
Newer PCIe version (5.0 vs 4)
Larger L3 cache size (64MB vs 16MB)
AMD Ryzen 5 PRO 8540U 's Advantages
Released 1 years and 3 months late
Higher specification of memory (7500 vs 5200)
Larger memory bandwidth (89.6GB/s vs 83.2GB/s)
Higher base frequency (3.7GHz vs 3.0GHz)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (30W vs 75W)