If you can't decide which CPU to buy, you can make a decision by looking at the Intel Core i9-9900X GeekBench 5 score multi and single core test and decide is it a good processor or a bad one to buy, how powerful is this processor. Here is all information from GeekBench 5 benchmark. A step-by-step analysis of all the specifications, so that it can be easier to understand, is made by the table. After looking at the data of all test and video, you can already make an informed decision about do you need to buy Intel Core i9-9900X or not.
However, it should be realized that the summary data in the article above do not mean that taking them into account you should completely trust a simple comparison of these numbers. Better to watch the testing video and read the reviews of real owners of Intel Core i9-9900X before making a decision buy this processor or not.