At 1280x1024, try playing crysis on high textures, I dare you!
At 1280x1024, crysis needs more than 256MB of video memory. Considering the 3850 extreme is $10 less and has 512MB of vram, and the fact that I'll be upgrading in a year or two anyway... I'll take the 3850.
Oh, and here is a link: in crysis at 1280x1024 without AA almost 300MB of Vram is used.http://www.yougamers.com/articles/13801_video_ram_-_how_much_do_you_really_need/images/crysis/
The speed of the card does not matter if you do not have enough Vram to store all the information! Then the system will be forced to use the painfully slow system ram (when compared to the fast Vram).