From HardOCP...if you wanna see more IQ SS between the two cards, just read up on their reviews.
http://www.hardocp.com/image.html?image=MTE4MTE4Mjc5N3pDem9Ieko5REpfM181X2wucG5n
http://www.hardocp.com/image.html?image=MTE4MTE4Mjc5N3pDem9Ieko5REpfM180X2wucG5n
The difference between the lower 25% grass setting and half grass setting can clearly be seen in the screenshots above. As you zoom out farther in third person view the grass disappears quicker with less grass distance. At 50% grass the grass is all visible at full zoom out.
http://www.hardocp.com/image.html?image=MTE4MTE4Mjc5N3pDem9Ieko5REpfMl80X2wuanBn
http://www.hardocp.com/image.html?image=MTE4MTE4Mjc5N3pDem9Ieko5REpfMl81X2wuanBn
The above screenshots illustrate the superior image quality of 16X Transparency Supersampling in Battlefield 2142.
http://www.hardocp.com/image.html?image=MTE4MTE4Mjc5N3pDem9Ieko5REpfNF82X2wucG5n
http://www.hardocp.com/image.html?image=MTE4MTE4Mjc5N3pDem9Ieko5REpfNF81X2wucG5n
The above screenshots illustrate the difference between full dynamic lighting and objects dynamic rendering. Shadow detail is greatly reduced with all objects that cast shadows, including trees. In the second screenshot you can really see the difference between lightmaps and real-time dynamic lighting
Conclusion:
Overall Performance Summary
In Oblivion we found the 320 MB and 640 MB GeForce 8800 GTS based video cards to perform faster than the ATI Radeon HD 2900 XT. Oddly enough they were able to handle higher grass distance settings in Oblivion despite the Radeon HD 2900 XT having much higher memory bandwidth.
Battlefield 2142 had a large difference in the gameplay experience between the ATI Radeon HD 2900 XT and both GeForce 8800 GTS video cards. Even with the much less expensive 320 MB GeForce 8800 GTS we were able to play the game smoothly at 16X Transparency Supersampling at 1600x1200 with no problems at all in intense gun fights with massive explosions. The more expensive ATI Radeon HD 2900 XT could not handle anything higher than 4X Performance Adaptive AA at 1600x1200.
S.T.A.L.K.E.R. also proved to separate these video cards by performance. The ATI Radeon HD 2900 XT was clearly the weaker performing video card. We had to lower the rendering quality to "Objects Dynamic Lighting" and run at 1280x1024 to receive playable performance. Unfortunately this does diminish the gameplay experience compared to the GeForce 8800 GTS based video cards. We were able to take the game up to full rendering quality and play at 1600x1200 with NVIDIA based cards. With the 320 MB version we had to drop the AF level to 4X and grass density to 50%.
Lost Planet is a fun game, plain and simple; we had a blast playing through the demo. If this is the future of gaming then we are very happy. There is no question that next generation titles will require fast hardware to keep up with the intense detail. This demo presented some interesting results for us. We found that the ATI Radeon HD 2900 XT really does take a large performance hit when enabling AA; to the point where it just isn't a viable option right now. The GeForce 8800 GTS based video cards on the other hand don't take as great a hit and some gamers may find 2X AA or more playable depending on what framerates you are comfortable with.
In Lost Planet's outdoor areas the ATI Radeon HD 2900 XT, without AA, is slightly better performing than both GeForce 8800 GTS based video cards. However, in that one indoor area of the performance test called "Cave" we saw the framerates suffer and perform slower than the GeForce 8800 GTS based video cards. We cannot wait until the full version game is released so we can test all the levels and see how the video cards really compare throughout the entire game.
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