Let's say you can't decide which processor to buy, you can make a decision after reading the comprehensive test Intel Core i7-8559U Cinebench r20 score single and multi core and understand is it a good processor or a bad one to buy, how powerful is this processor. Here is useful information from Cinebench r20 benchmark. A thorough review of all the technical characteristics, so that it can be easier to understand, is summarized in the table. After reading the results this test and video, you can already make an briefed decision about do you need to buy Intel Core i7-8559U or not.
Although it should be realized that the summary data in the text above do not mean that taking them into account you should entirely trust a simple quantitative comparison. Better to watch benchmarks video and read the reviews of of people who bought Intel Core i7-8559U before making a decision buy this processor or not.