Dead Space
This is a pretty cool game, but it's something of an iffy console port, and it doesn't allow the user to turn on multisampled AA or anisotropic filtering. Dead Space also resisted our attempts at enabling those features via the video card control panel. As a result, we simply tested Dead Space at a high resolution with all of its internal quality options enabled. We tested at a spot in Chapter 4 of the game where Isaac takes on a particularly big and nasty, er, bad guy thingy. This fight is set in a large, open room and should tax the GPUs more than most spots in the game.

Wow, uh, it's a clean sweep for Nvidia. Doesn't get much more definitive than that. Thing is, if you look at the numbers, even the slowest Radeon runs the game just fine, with its lowest frame rate above 30 FPS. AMD apparently has some driver work to do here, since performance doesn't scale well at all with multiple GPUs.

Then again, because of the game's control problems at high frame rates, the GeForce GTX 285 SLI was the least playable config we tested. That can be remedied with a tweak in the Nvidia control panel, though.