{mosgoogle}There comes a point where one can't really call a laptop a laptop. This is probably it. The Rock Xtreme SLI has a 19" screen, two graphics cards and enough weight to be eligible for entry into Celebrity Fit Club. This is one massive laptop, and it delivers some massive performance too.

NVIDIA's SLI has been a sound commercial success for the graphics firm, with plenty of enthusiasts buying into the dual-graphics ecosystem, even if not buying two graphics cards straight off the bat. The promise of über-high-res gaming with insane detail has proved to be a pretty good selling message. The GeForce 7-series was designed very much with mobile in mind, which is why we saw the 7800 Go come out so soon after the launch of the desktop part.

Well, today, NVIDIA is showing off its collaboration with its system builder partners, who have put this top-end SLI performance in a notebook system. As we intimated above: this is not a laptop. You cannot use this on a train, or a plane, or on your lap. This system requires a desk: in essence, it is a portable desktop. But, it's a portable desktop with a heck of a lot of power. We're here today to find out just how well the system measures up to 'proper' desktop SLI.

Read the full review here.