That the Radeon HD 6990 manages to post such impressive results while sitting at about 300W is really impressive. Switching over to the overclocked BIOS mode is a bit less energy efficient, but that much is expected.

And there you have it, the world's fastest graphics card (for now). Truth be told, Nvidia will surely be prepping a dual-GPU response of its own, so even the well-heeled gamer shouldn't dive headlong just yet. Of course, therein lies the rub of living on the bleeding edge. The Radeon HD 6990 will cost you a pretty penny, but its money well spent -- if you're running multiple large displays or at least one 30-inch monitor, and have the hardware and software to take advantage of what the card has to offer. If this doesn't apply to you then by all means, check out the offerings further down on our . Both the AMD Radeon HD 6970 and the offer an excellent gaming experience for we mere mortals.