The Calibre P860 Turbo Graphic Card utilizes NVIDIA's newest stream processors to deliver the fine graphics and visual special effects. Thanks to the innovative SPARKLE Super Clock technology (SCT) and Turbo button design,  now the Calibre P860 Turbo Graphic Card users can embrace 32 extreme fast stream processors with much higher shader clock out of box. The Calibre P860 Turbo Graphic Card features dual video BIOSes, each containing different core, memory and stream processors clock settings. Users can switch between the two clock speed profiles by pressing the turbo button on the metal expansion bracket above DVI ports. Pressing the turbo button  will raise  the core speed to 580 MHz, memory speed to 1500 MHz and shader speed to 1404 MHz. This turbo button will expeditiously raise the performance of the Calibre P860 Turbo Graphic Card, for example, the Calibre P860 Turbo Graphic Card will gain 12% score boost in 3DMark06  with a press of the turbo button. Like racing car with Turbo engine, the Calibre P860 Turbo Graphic Card also runs quickly in 3D mode and works statically in 2D mode, users can choose the working states at any time according to their need, lowering working temperature and extending the lifespan of the graphic card. Users can also prevent BIOS data damage from computer virus.