You may have difficulties with the choice of a processor, you will solve them by looking at comprehensive benchmark Intel Core i9-9900 Cinebench r20 score single and multi core 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 r20 benchmark. A careful review of all the specifications, so that it can be easier to understand, is summarized in the table. After looking at the data of parallel test and video, you already be able to understand do you need to buy Intel Core i9-9900 or not.
Although it should be understood that all the number in the article above do not mean that taking them into account you should fully trust a simple comparison of these figures. Better to watch the testing video and read the reviews of of people who bought Intel Core i9-9900 before making a choice buy this CPU or not.