You may have difficulties with the choice of a CPU, you will solve them by looking at full benchmark Intel Core i9-7900X Cinebench r15 score single and multi core and understand how powerful is this CPU, is it a good processor or a bad one to buy. Here is useful information from Cinebench r15 benchmark. A careful analysis of all the specifications, so that it can be easier to understand, is made by the table. After reading the results of parallel test and video, you already be able to understand do you need to buy Intel Core i9-7900X or not.
All the data in the table above do not mean that taking them into account you should entirely trust a simple comparison of these numbers. Better to watch the video tests and read the reviews of real owners of Intel Core i9-7900X before making a decision buy this processor or not.