The Gigabyte GeForce GTX 260 Core 216 Super Overclock Video Card comes factory overclocked if you couldn't figure that out by the name. The standard core clock of 576MHz has been bumped up to 680MHz, which is an 18% frequency boost over the NVIDIA GeForce GTX 260 reference design. With clock speeds like this you can expect 3% better performance than standard GTX 275 graphics cards!