AMD Ryzen 9 7845HX 's Advantages
Released 3 years late
Larger memory bandwidth (83.2GB/s vs 68.27GB/s)
Newer PCIe version (5.0 vs 3.0)
Higher base frequency (3.0GHz vs 2.0GHz)
Larger L3 cache size (64MB vs 8MB)
More modern manufacturing process (5nm vs 7nm)
AMD Ryzen 7 4700U 's Advantages
Better graphics card performance
Higher specification of memory (LPDDR4-4266 vs DDR5-5200)
Lower TDP (10W vs 45W)