# Luumi Breaks 12-Year-Old Core i5 4670K Record

October 18, 2026 at 01:49 PM

> Overclocker Luumi sets a new Cinebench R11.5 world record by pushing Intel's Haswell CPU to 6.3 GHz using liquid nitrogen cooling.

Renowned overclocker **Luumi** has set a new **HWBot** world record using the **Intel Core i5 4670K** processor. Achieving a score of 10.8 cb in the **Cinebench R11.5** multicore benchmark, the feat successfully toppled a standing record that had remained unbeaten for 12 years.

The record-breaking system utilized an **ASRock Z97 OC Formula** motherboard, 4GB of XPG DDR3 RAM, and a Corsair AXi 1600 power supply. Running on Windows 7 64-bit Pro, Luumi applied liquid nitrogen cooling to push the 22nm CPU to a massive frequency of 6,301.00 MHz.

This milestone demonstrates the longevity of Intel's Haswell architecture. Originally featuring a 3.4 GHz base clock and 84W TDP, the 4-core, 4-thread i5 4670K remains a popular target for enthusiasts looking to push legacy hardware to its absolute limits.


[#Overclocking](<https://hardwarebrief.com/hashtag/overclocking>) #IntelHaswell #HWBot #LiquidNitrogen [#PCMasterRace](<https://hardwarebrief.com/hashtag/pcmasterrace>)

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