An overclocker named Luumi has broken a 12 year old world benchmark record using an Intel Core i5 4670K desktop processor. The experiment pushed the 4 core Haswell chip to 6.3 GHz using liquid nitrogen cooling to achieve top scores in Cinebench R11.5. This performance edges out the previous long standing record set at 6.2 GHz.
Luumi raised the Core i5 4670K clock speeds from the factory 3.4 GHz base up to an extreme 6.3 GHz. The pushed silicon produced a final Cinebench R11.5 score of 10.8 points. This result surpasses the previous record of 10.76 points held by overclocker Strat, who achieved that score at 6.2 GHz roughly 12 years ago. Sustaining those frequencies required continuous liquid nitrogen cooling to prevent thermal shutdown under heavy computing loads.
The test setup used an ASRock Z97 OC Formula motherboard paired with 4GB of XPG DDR3 memory clocked at 2708 MT/s. Power was delivered by a Corsair AX1600W power supply. The Intel Core i5 4670K originally launched in 2013 built on the 22 nm Haswell architecture for socket LGA 1150. The chip contains 4 physical cores without Hyper Threading, running stock frequencies between 3.4 GHz and 3.8 GHz with Turbo Boost.
