You may have difficulties with the choice of a CPU, you will solve them by looking at full test Intel Core i7-9800X GeekBench 5 score multi and single core and understand is it a good processor or a bad one to buy, how powerful is this CPU. Here is useful information from GeekBench 5 benchmark. A thorough analysis of all the specifications, so that it can be easier to read, is summarized in the table. After reading the results of parallel test and video, you already be able to figure out do you need to buy Intel Core i7-9800X or not.
The summary data that you have looked at here do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Be sure to watch the video tests and read the reviews of of people who bought Intel Core i7-9800X before making a decision buy this CPU or not.