For example you have difficulties with the choice of a CPU, you will solve them by looking at comprehensive benchmark Intel Core i5-7600K Cinebench r20 score single and multi core and understand how powerful is this CPU, is it a good CPU or a bad one to buy. Here you can find all information from Cinebench r20 benchmark. A thorough review of all the technical characteristics, to make it easier to understand, is made by the table. After reading the results of all test and video, you already be able to understand do you need to buy Intel Core i5-7600K or not.
However, it should be realized that all the number in the text above do not mean that taking them into account you should completely trust a simple quantitative comparison. Better to watch benchmarks video and read the opinion of of people who bought Intel Core i5-7600K before deciding buy this CPU or not.