The ASUS GTX660-DC2O-2GD5 is overclocked, 20% cooler and 3x quieter. Based on a 1085MHz factory overclocked core - 105MHz higher than reference specification, the ASUS GTX660-DC2O-2GD5 delivers overwhelming power demanded by gamers to dominate and destroy challenging rivals. This sophisticatedly and meticulously designed graphics card not only brings performance and features of the industry-leading Kepler architecture, but also incorporates a number of exclusive innovation and technology, which are the products of years of research and experience by ASUS. DIGI+ VRM with Super Alloy Power, an acclaimed design proven by a series of ASUS motherboards, delivers better power efficiency, lower noise and greater voltage modulation range. GPU Tweak utility puts you into driver's seat, allowing you to fully monitor and optimize the settings. DirectCU II cooling solution produces 20% high cooling performance than reference design, eliminating your worry about overheating when overclocking.