Let's say you are thinking about choosing a CPU, you will be able to make a decision by looking at the Intel Core i9-9900K Cinebench r23 score multi and single core test and decide is it a good processor or a bad one to buy, how powerful is this CPU. Here you can find all information from Cinebench r23 benchmark. A step-by-step analysis of all the specifications, to make it easier to understand, is summarized in the table. After reading the results of parallel test and video, you can already make an informed decision about do you need to buy Intel Core i9-9900K or not.
The summary data in the text above do not mean that taking them into account you should completely trust a simple comparison of these figures. Better to watch benchmarks video and read the opinion of of people who bought Intel Core i9-9900K before making a selection buy this processor or not.