
You'll be able to play the game at graphical quality settings that rival and surpass the Xbox 360's if your PC meets or exceeds the game's recommended system requirements. BioShock takes advantage of DirectX 10 and looks better in Windows Vista. If your computer lands somewhere in between the minimum and recommended system requirements, check out our BioShock Hardware Performance Guide to get an indication on how your computer will handle the game.
Mouse over the default PC BioShock screenshot to see the Xbox 360 BioShock comparison image.
PC High Quality vs. Xbox 360

The PC graphics at high quality are comparable to the Xbox 360's, but the PC still offers higher resolutions and extreme anti-aliasing support.

You won't sacrifice much image quality if you choose to play on the Xbox 360.
PC Medium Quality vs. Xbox 360

The Xbox 360 takes the lead once we reduce the PC graphics down to medium quality.

The lighting on the walls disappears at medium quality on the PC.
PC Low Quality vs. Xbox 360

Don't play BioShock at low quality settings on the PC. Upgrade your system or buy an Xbox 360.

BioShock makes great use of shadows to create suspense and to cue the player in on nearby enemies. The game won't be as enjoyable if you play on the PC at low quality.
Source : GameSpot.com
Source : GameSpot.com
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