A new generation of GPUs from Nvidia and AMD has hit the streets. Both camps are offering incredible performance and the widest array of features ever before seen in graphics cards. But, inevitably, each side brings its own unique strengths and weaknesses. What better way to determine the performance champ than by letting this season’s new crop of cards duke it out in the various price categories?On one side is AMD, the self-proclaimed master of efficiency, looking to hold onto the glory it grabbed when it shipped the original Radeon HD 5870—a surprise contender that knocked former champ Nvidia to the canvas at the time by offering DirectX 11 feature sets at impressive performance levels without requiring a nuclear reactor to power it.