AMD Ryzen 5 2500U 's Advantages
Better graphics card performance
Lower TDP (15W vs 75W)
AMD Ryzen 9 7945HX 's Advantages
Released 5 years and 3 months late
Higher specification of memory (5200 vs 2400)
Larger memory bandwidth (83.2GB/s vs 35.76GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (2.5GHz vs 2.0GHz)
Larger L3 cache size (64MB vs 4MB)
More modern manufacturing process (5nm vs 14nm)