In our Skylake 6700K/6600K Batch and Serial Numbers forum thread, people share their overclocking findings with Skylake CPUs. This morning we came across Lucky_n00b's post detailing the overclocking capabilities of 10 retail Core i7 6700K CPUs. He does this in preparation for AOCT 2015, the world's first Skylake OC competition to be hosted in Indonesia.
For the binning, Lucky_n00b tests three different scenarios. First, the maximum frequency the system can boot Windows 7 at with 4 cores and 8 threads enabled and using 1.35V. Second, the maximum stable frequency for Cinebench R15 using the same core and voltage configuration. Lastly, he checks the lowest CPU voltage required to achieve 4.6GHz stable through Cinebench R15. All the CPUs are tested with the same cooling solution: Noctua NH-U12S + Noctua NF-F12 iPPC-3000 at 25C ambient. On the website JagatOC.com (Indonesian) you can find more information on the hardware used for the testing, including motherboard, memory, and so on. You will also find more information on the settings enabled and disabled in the BIOS. Very interesting stuff!
The end result is as follows. The highest frequency the best CPU can boot Windows 7 at is 4900 MHz. The maximum stable Cinebench R15 frequency with 4c/8t and 1.35V and air cooling is 4800 MHz. The lowest CPU voltage required for Cinebench R15 at 4600 MHz is 1.2V. You can find the detailed table in this forum post. Thanks for sharing!