AMD Phenom hits 7GHz

November 29, 2010 // 4:42 p.m.

Tags: #amd #amd-phenom-ii-x4-975 #brazil #liquid-nitrogen #ln2 #overclocking #phenom-ii #xtremesystems

An overclocking event in Brazil has achieved remarkable results, with an AMD Phenom II X4 975 CPU coaxed to speeds of over 7GHz.

The quad-core chip, which ordinarily runs at a frequency of 3.6GHz with an 18x clock multiplier, was pushed to an overall speed of 7.134GHz by using a HTT frequency of 226.49MHz and a CPU multiplier 31.5x - an impressive feat.

The team, from the XtremeSystems Forums, used an Asus Crosshair IV motherboard featuring an AMD 890FX chipset and a seriously powerful liquid nitrogen-based cooling system to achieve their overclock, which proved slightly unstable during extended benchmarking. A change to a bus frequency of 220.4MHz, however, netted a rock-solid 6.944GHz overclock.

The world-record attempt wasn't without its casualties, however: a modified Nvidia GTX 580 1.5GB shorted out during the overclocking and was consigned to scrap, replaced for the official attempt by an apparently more durable - although significantly slower - ATI Radeon HD 4890 card.

It's an impressive feat, and a considerable win for the team behind it - but says little about the Deneb-based processor under general usage. Overclocking contests that use liquid nitrogen for a coolant are impressive and result in very high figures, but are somewhat impractical for day-to-day use compared to an air- or water-based cooling system.

Are you impressed that the team were able to get the AMD Phenom II to over 7GHz, or just saddened that an Nvidia GTX 580 had to sacrifice its life in the attempt? Share your thoughts over in the forums.

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