First of all, christ people, Unigine looks pretty much identical on both ATI and NVidia, if it werent, one camp or another would call out CHEATER!
Second of all
Olivion
We have already got to the conclusion that using 2560x1600 on a 1GB card causes dramatic fps drop due to the framebuffer taking such a large amount of memory.
For the people with monstrous 30" displays there will be 2GB 5870 shortly in few different flavours(including OCed one).
So again these results arent exactly comparable.