Let's say there are difficulties with the choice of a processor, you will solve them by seeing the full test Intel Core i5-9400H Cinebench r23 score single and multi core and decide how powerful is this CPU, is it a good processor or a bad one to buy. Here is all information from Cinebench r23 benchmark. A thorough analysis of all the technical characteristics, to make it easier to understand, is summarized in the table. After looking at the data of parallel test and video, you already be able to figure out do you need to buy Intel Core i5-9400H or not.
All the number in the table above do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Be sure to watch benchmarks video and read the reviews of real owners of Intel Core i5-9400H before deciding buy this CPU or not.