Using liquid nitrogen, the 7.0 GHz milestone was surpassed using an Intel 3rd generation Core i7 3770k processor (aka Ivy Bridge) by renowned overclocker HiCookie, pushing the GIGABYTE Z77X-UD3H motherboard to a fully validated 7.03 GHz using liquid nitrogen cooling. This is regarded as the current #1 highest Ivy Bridge CPU frequency and a world record.