What does overclocking a video card mean?
Answer from: Get Online:
It is possible and on sites of high schools, but there sometimes it is necessary to be very strenuous to...
Overclocking increases the performance of the processor:graphics card by increasing the clock frequency. But in this case, the components of your PC work in forced mode, which is not intended for their normal operation. This may give some advantage in gaming, but will reduce the life of your computer, in addition, additional cooling will be needed. You can overclock your CPU:graphics card through the bios or with special software tools.