For example you can't decide which CPU to buy, you can make a decision by looking at the AMD Ryzen 7 5800X3D Cinebench r20 score multi and single core test and understand how powerful is this processor, is it a good CPU or a bad one to buy. Here you can find useful information from Cinebench r20 benchmark. A careful review of all the specifications, 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 7 5800X3D or not.
All the number in the article above do not mean that taking them into account you should totally trust a simple comparison of these numbers. Better to watch the testing video and read the reviews of real owners of AMD Ryzen 7 5800X3D before deciding buy this CPU or not.