Market for AMD graphics cards is rapidly expanding from just gaming/graphics to a worldwide boom in mining from everything like litecoins to genetic code research, so that consumers are now buying Radeons by the trunkloads!
http://www.forbes.com/sites/reuvencohen/2013/11/28/cryto-currency-bubble-continues-litecoin-surpasses-a-billion-dollar-market-capitalization/