Professional overclocked Chi-Kui Lam from Asian tech site HKEPC put Intel's Core i7-6700K through LN2 testing and almost achieved a 7GHz clockspeed! The chip was overclocked to 6998.88MHz, a 74.97 percent increase over the stock frequency. To achieve this feat, the voltage was increased from 1.2V to 1.888V, three of the four cores were disabled and Hyper-Threading was deactivated.
To set the record, Chi-Kui Lam used a testbed featuring Asrock Z170 OC Formula mainboard, a G.Skill Ripjaws 4 DDR4 memory module as well as a 1300W power supply unit. The processor was cooled-down using liquid nitrogen (LN2).