If you have difficulties with the choice of a CPU, you will solve them by seeing the detailed test Intel Core i7-8709G Cinebench r20 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 r20 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 Intel Core i7-8709G or not.
All the data that you have looked at here do not mean that taking them into account you should undividedly trust a simple quantitative comparison. Be sure to watch benchmarks video and read the opinion of of people who bought Intel Core i7-8709G before deciding buy this CPU or not.