i5-6600 vs i7-6700: +40% in price but what about performance? | AnandTech Forums: Technology, Hardware, Software, and Deals
Compilation of information on i3 vs i5 vs i7, Sandybridge vs Skylake and RAM speed in CPU intensive games : r/buildapc
This is why I hate userbenchmark.. how are you going to say a modern 16 core cpu is only slightly more powerful than a 4 core cpu from 2011 : r/pcmasterrace
Generational Tests on the i7-6700K: Legacy, Office and Web Benchmarks - The Intel 6th Gen Skylake Review: Core i7-6700K and i5-6600K Tested
Amazon.com: Intel Core i7-860 : Electronics
Intel Core i7-2600 | Processor benchmarks | PC Builds