AMD is back in the high-end graphics game with the release of its ATI HD Radeon 5870, the fastest single-GPU videocard anywhere on the planet (see our review and benchmarks here). And now that it's been released, we expect no shortage of system vendors to step up to the plate with new rigs build around the potent GPU.

One of the first to announce immediate availability of the new cards is Maingear. The boutique system vendor says the HD 5870 can be configured with the company's Ephex, F131, Prelude, and X-Cube (SFF) systems.

"We're proud to feature the AMD ATI Radeon HD 5870 graphics processor in our award-winning custom PCs," says Wallace Santos, CEO and found of Maingear. "It's only fitting that the world's fastest GPU find its way into what has been hailed by editors all over America as the fastest gaming computers on the market."

For those of you needing to push pixels at ultra-high resolutions with all the eye candy cranked up, Maingear says its ePhex supports up to three HD 5870 cards in CrossFireX, and up to two in the Prelude and X-Cube.

Image Credit: Maingear