The new CPUs Skylake are easier to raise frequencies thanks to some changes introduced by Intel in the CPU architecture. It is what it takes to upload all Skylake CPUs and not just those that are specifically for overclocking. Therefore, now getting the best frequencies of a CPU depends very much on the motherboard.
Asus is proud that its Maximus VIII Gene and Maximus Extreme VIII have managed to break several world records for overclocking. That means that the new maximum frequency achieved is 7007.85 MHz. This figure was achieved thanks to cooling the CPU to -190 ° C. The previous record was around 6998.88 MHz.