For example you are thinking about choosing a CPU, you will be able to make a choice by looking at the AMD Ryzen 5 7645HX Cinebench r20 score single and multi core test and understand is it a good processor or a bad one to buy, how powerful is this CPU. Here is all information from Cinebench r20 benchmark. A thorough review of all the technical characteristics, to make it easier to understand, is presented in the form of the table. After reading the results of parallel test and video, you already be able to understand do you need to buy AMD Ryzen 5 7645HX or not.
All the figures in the table above do not mean that taking them into account you should totally trust a simple quantitative comparison. Better to watch benchmarks video and read the opinion of real owners of AMD Ryzen 5 7645HX before making a selection buy this CPU or not.