An overclocker identified as Luumi has broken a 12-year-old world record by pushing an Intel Core i5 4670K to 6.3 GHz using liquid nitrogen cooling and achieving a score of 10.8 points in Cinebench R11.5. The result, published on HWBot, surpasses the previous benchmark set by Strat, who recorded 10.76 points at 6.2 GHz in the same benchmark suite. The achievement marks the highest score recorded for the Haswell-era processor in the R11.5 version of the test, which has not been widely used since its release over a decade ago. The Core i5 4670K, launched in 2013 as part of Intel’s fourth-generation Core lineup, was built on a 22nm process and originally featured base and boost clocks of 3.4 GHz and 3.8 GHz. It supported four cores and four threads with 6 MB of cache and was known for its overclocking potential. Luumi employed an ASRock Z97 OC Formula motherboard, 4 GB of DDR3 memory operating at 2,708 MT/s, and a Corsair AX1600W power supply to stabilize the overclock. While extreme frequency records for this chip have previously exceeded 7.0 GHz, the 6.3 GHz configuration represents a notable milestone in the context of legacy hardware benchmarking. The record highlights continued interest in evaluating older architectures under extreme cooling methods, though its practical impact on modern computing applications remains limited.