Something seems fishy about the benchmarks in the link. How can a GTX280 SLi get only 57fps at 1600x1200 and medium gfx, yet the 9800GTX+ Sli get 62 fps at the same resolution and same gfx? The GTX280 SLi should be much better.
I have a feeling that many of the cards listed in the link were tested using different drivers and, quite probably, on a different base machine, which would go a long way to explain the descrepencies. Thanks for pointing it out.
Swordfish, please disreguard the link results, based on the others comments and my own closer checking of the results, I do not think they are a valid comparasion.