AMD Ryzen 9 7845HX 's Advantages
Newer PCIe version (5.0 vs 4)
Larger L3 cache size (64MB vs 16MB)
AMD Ryzen Z1 Extreme 's Advantages
Better graphics card performance
Higher specification of memory (DDR5-5600 vs DDR5-5200)
Larger memory bandwidth (89.6GB/s vs 83.2GB/s)
Higher base frequency (3.3GHz vs 3.0GHz)
More modern manufacturing process (4nm vs 5nm)
Lower TDP (9W vs 45W)