The graphics game has been nothing if not interesting the past year or so. AMD's Radeon HD 4800 series upended expectations by using a mid-sized chip to serve the bulk of the market and pairing of two of them in an X2 card to create a high-end product. This strategy has worked out pretty well, in no small part because the Radeon HD 4870 GPU has proven to be very efficient for its size. The result? Fast graphics cards have become very affordable, with prices driving to almost-embarrassing lows over time. *************************snip**************************** Less than 18 months after the introduction of...