Visually, the PC version looks to be on par with the Xbox 360 version, despite the fact that it uses different technology. However, you'll probably need a beefy system with a top-of-the-line video card in order to run the game well at high detail. The version of the game we played had trouble maintaining a smooth frame rate on our older hardware, though the developers may have yet to optimize the code fully. Still, if you have the processing power, the PC version looks just as good as the Xbox 360 version, if not better, from the incredible draw distances (imagine standing on the roof of a building and seeing buildings extend for miles) to the dust and grit particle effects that effuse the air. You'll also discover an environment that's fairly reactive, thanks to the sophisticated physics engine. You can take apart cars with gunfire, and then push the parts around, something that you can't do in the Xbox 360 version. The physics in the game are so abundant that the PC version will have support for the upcoming Aegia PhysX card, the add-on physics chip due out next month. If you have the PhysX card, you'll see complex physical interactions without a hit on your frame rate. We saw the game running on an extremely high-end system without the card, and there were still some impressive physics in action, such as a grenade sending dozens of boxes in the air. However, on less powerful hardware, the same demonstration can send the frame rates plummeting, so we'll see how Ubisoft scales and optimizes the performance in the final version of the game.