If you have difficulties with the choice of a CPU, you will solve them by seeing the detailed test AMD EPYC 7742 Cinebench r23 score multi and single core and understand how powerful is this CPU, is it a good processor or a bad one to buy. Here you can find useful information from Cinebench r23 benchmark. A thorough analysis of all the technical characteristics, to make it easier to read, is presented in the form of the table. After reading the results this test and video, you can already make an informed decision about do you need to buy AMD EPYC 7742 or not.
The summary data that you have looked at here do not mean that taking them into account you should fully trust a simple quantitative comparison. Be sure to watch the video tests and read the opinion of of people who bought AMD EPYC 7742 before deciding buy this processor or not.