The Raspberry Pi Foundation has announced several updates for its credit card-sized computer, as well as new profiles that can increase performance by up to 50% by overclocking the single-core ARM11 processor. Owners will be able to choose from one of five set overclocks...

Indonesian PC wizard Hazzan has broken the world record for overclocking PC graphics cards. How do you even measure such a thing? The scene uses the scores handed out by benchmark tool 3DMark 11, and Hazzan's 4-way SLI GTX 680 setup registered a score of P33190, which beat the previous mark by 39 points.

You go out to buy a new graphics card, set a budget, and it'd seem that for another $30-60 you can always go with the next step up that performs a little better. Or, you could save those extra dollars, go for the budget model and overclock it and basically match the next step up's performance.

With that in mind, we have hand-picked three graphics cards that represent select price ranges to see just how much extra value can be obtained through overclocking. For the $100+ range we have the Radeon HD 6750, the GeForce GTX 560 Ti has been used to represent the $200+ market. Then at the top of the food chain we have the Radeon HD 6970 going for $300 and up.