Overclockers Club published a review on the ASUS ROG Rampage V Edition 10
A quote from the article:
Overclocking comes in several flavors on the Rampage V Edition 10. Using ASUS F11 tool in the BIOS or choosing one of several options in the Extreme Tweaker section of the UEFI BIOS let you sit back and watch the tools work. In this case, a solid 3.875GHz overclock was as simple as choosing the tool in the BIOS and selecting it. Using the 5-Way Optimization tool in AiSuite III within the operating system follows the same algorithms, but adds a few more twists into the mix by tuning fan performance, as well as the CPU and DRAM performance settings. Manual overclocking is going to get you the highest overclock with most boards and this one is no different in that regard. A speed of 4.4GHz is the maximum all core overclock my Core i7 6950X can deliver with even the custom water cooling solution I use. However, if you want a no fuss overclock, this board delivers and you can always push a little harder.ASUS ROG Rampage V Edition 10 Review @ OCC