For example you have difficulties with the choice of a CPU, you will solve them by looking at comprehensive test Intel Core i7-8559U Cinebench r23 score single and multi core and understand is it a good CPU or a bad one to buy, how powerful is this CPU. Here is all information from Cinebench r23 benchmark. A step-by-step analysis of all the technical characteristics, so that it can be easier to read, is made by the table. After looking at the data this test and video, you can already make an briefed decision about do you need to buy Intel Core i7-8559U or not.
However, it should be understood that all the figures in the text above do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Better to watch the testing video and read the reviews of of people who bought Intel Core i7-8559U before making a decision buy this processor or not.