Perhaps you are thinking about choosing a CPU, you will be able to make a decision by looking at the Intel Core i3-8121U Cinebench r23 score multi and single core test and understand is it a good processor or a bad one to buy, how powerful is this CPU. Here is useful information from Cinebench r23 benchmark. A step-by-step analysis of all the technical characteristics, so that it can be easier to read, is presented in the form of the table. After looking at the data this test and video, you already be able to understand do you need to buy Intel Core i3-8121U or not.
All the figures in the article above do not mean that taking them into account you should totally trust a simple quantitative comparison. Better to watch benchmarks video and read the reviews of real owners of Intel Core i3-8121U before deciding buy this CPU or not.