Perhaps you can't decide which CPU to buy, you can make a decision after reading the detailed test AMD Ryzen 3 4300U Cinebench r20 score multi and single core and understand is it a good processor or a bad one to buy, how powerful is this processor. Here you can find useful information from Cinebench r20 benchmark. A thorough review of all the technical characteristics, so that it can be easier to understand, is presented in the form of the table. After reading the results of all test and video, you can already make an informed decision about do you need to buy AMD Ryzen 3 4300U or not.
Although it should be understood that the summary data that you have looked at here do not mean that you should be guided entirely by them and trust a simple quantitative comparison. Better to watch the testing video and read the opinion of real owners of AMD Ryzen 3 4300U before deciding buy this CPU or not.