If you are thinking about choosing a CPU, you will be able to make a decision after reading the detailed test Intel Core i7-6900K Cinebench r15 score multi and single core and decide how powerful is this processor, is it a good processor or a bad one to buy. Here you can find all information from Cinebench r15 benchmark. A careful analysis of all the specifications, so that it can be easier to read, is summarized in the table. After looking at the data of parallel test and video, you can already make an informed decision about do you need to buy Intel Core i7-6900K or not.
However, it should be realized that all the figures in the article above do not mean that taking them into account you should fully trust a simple quantitative comparison. Better to watch benchmarks video and read the reviews of of people who bought Intel Core i7-6900K before making a choice buy this CPU or not.