When AMD announced its latest flagship, the Radeon HD 7970, we knew it was fast and efficient (because reviewers said so!), but gamers were told they'd have to wait until the new year to try it themselves. Now, precisely on schedule, the card is available for purchase, and we're starting to hear word of systems that will be refreshed to include the 28nm card. Maingear just said that it will offer the 7970 inside its Shift and F131 desktops, followed by the Vybe at some later date. If you recall, the card has a 925MHz engine that can be overclocked to 1.1GHz, 2,048 stream processors and an unusual 384-bit memory bus serving 3GB of GDDR5 -- not to mention, it's capable of a mere 3W power draw in "long idle" mode. Need even more of a recap on how awesome this card is? Find the full PR after the break.