For example you can't decide which CPU to buy, you can make a decision after reading the comprehensive benchmark Intel Core i7-8809G Cinebench r15 score single and multi core and decide is it a good processor or a bad one to buy, how powerful is this processor. Here is useful information from Cinebench r15 benchmark. A careful review 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 i7-8809G or not.
However, it should be realized that all the figures in the article above do not mean that taking them into account you should totally trust a simple comparison of these figures. Better to watch benchmarks video and read the reviews of of people who bought Intel Core i7-8809G before deciding buy this CPU or not.