For example there are difficulties with the choice of a processor, you will solve them by looking at comprehensive test Intel Core i5-12400 GeekBench 5 score multi and single core and understand how powerful is this processor, is it a good processor or a bad one to buy. Here is useful information from GeekBench 5 benchmark. A careful review of all the technical characteristics, so that it can be easier to understand, is made by the table. After looking at the data this test and video, you can already make an informed decision about do you need to buy Intel Core i5-12400 or not.
All the number in the article above do not mean that taking them into account you should undividedly trust a simple comparison of these numbers. Be sure to watch benchmarks video and read the opinion of of people who bought Intel Core i5-12400 before deciding buy this CPU or not.