Perhaps you can't decide which processor to buy, you can make a choice after reading the comprehensive benchmark Intel Core i3-12100 Cinebench r15 score multi and single core and understand how powerful is this CPU, is it a good CPU or a bad one to buy. Here is all information from Cinebench r15 benchmark. A step-by-step analysis of all the specifications, so that it can be easier to understand, is presented in the form of the table. After looking at the data of parallel test and video, you already be able to know do you need to buy Intel Core i3-12100 or not.
The summary data that you have looked at here do not mean that taking them into account you should completely trust a simple comparison of these numbers. Better to watch the video tests and read the opinion of of people who bought Intel Core i3-12100 before deciding buy this CPU or not.