Bioshock (DirectX 10)
An impressive FPS-based game with a great story, Bioshock impresses with both graphics and its ability to drag you along in the gameplay. It has both DX9 and DX10 render paths and should make a great benchmark for graphics cards promising the best of both worlds.
In Bioshock the GTX 280 1GB card performs very well and is about as fast as the 9800 GX2 card that uses a pair of G92 cores for its processing compared to the single GT200 of the GTX 280. I was expecting a bit more out of the card though since it does cost so much more than the GX2 card. The GTX 280 has a beat out the top NVIDIA single GPU solution, the 9800 GTX by a noticeable amount: 42% or so.