#techspot Nvidia's GeForce GTX 680 may have swiped the performance crown away from AMD's Radeon HD 7970 earlier this year, but at $500, the initial Kepler offering was inaccessible to most system builders. That situation improved slightly in May with the GTX 670, a popular choice among enthusiasts for delivering an incredible value. In our testing, it provided GTX 680-like performance at a $100 discount. More »