You may have difficulties with the choice of a processor, you will solve them by seeing the comprehensive test Intel Core i7-9800X Cinebench r20 score multi and single core and decide how powerful is this processor, is it a good processor or a bad one to buy. Here you can find useful information from Cinebench r20 benchmark. A step-by-step analysis of all the specifications, to make it easier to read, is presented in the form of the table. After reading the results of parallel test and video, you already be able to know do you need to buy Intel Core i7-9800X or not.
Although it should be realized that all the data that you have looked at here do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Better to watch benchmarks video and read the reviews of of people who bought Intel Core i7-9800X before making a selection buy this CPU or not.