Switchable graphics may not be one of the most exciting new technologies to hit the notebook space in the last few years, but for PC enthusiasts, I think it's easily one of the most important. Enthusiasts are a notoriously demanding lot, you see. We crave performance, and most of us are gamers who simply can't get by with a weak-sauce integrated graphics processor, especially if it's an Intel Graphics Media Accelerator. At the same time, we want our notebooks to be thin and light and offer exceptional battery life—requirements that generally favor integrated graphics solutions, and GMAs in particular. Following tech writing's tradition of lazy automotive analogies, that's sort of like asking for the power of at least a turbo-charged V6 inside a car that offers Prius-like fuel economy..