If you are thinking about choosing a CPU, you will be able to make a choice by looking at the Intel Core i5-6600K Cinebench r15 score multi and single core test and understand is it a good CPU or a bad one to buy, how powerful is this CPU. Here is all information from Cinebench r15 benchmark. A careful analysis of all the specifications, to make it easier to read, is made by the table. After reading the results this test and video, you can already make an briefed decision about do you need to buy Intel Core i5-6600K or not.
All the figures 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 the video tests and read the reviews of real owners of Intel Core i5-6600K before deciding buy this CPU or not.