Gamers were down-right spoiled at this year's GDC with a full 17 minutes of beautiful Battlefield 4 in-game footage. Minds blown, AMD took responsibility for the part it played in the mess, admitting the demo was running on its Radeon HD 7990 graphics card. It's the first time the company's confirmed the existence of the long-fabled card, and went as far as calling the case-busting monster "the world's fastest." All we know is the card combi
