I have no idea regarding overclocking 6850s, but if you could venture into overclocking yourself you'd probably
hit the "overclocked" clocks of the Vapor-X that comes standard. If you don't however, take a look at the picture I posted in my edit. It also should by theory cool much better. I'll see if I can get a hold of some information regarding the cooling area.
I seriously recommend you take a look of the source link I edited in my first post. They have benchmarks of popular games like Shogun 2, Dirt 3, Batman: AA and CoD: BO. A quick google search gave me all this information, so if you need to find more I'd suggest googling something along the lines of "6850 Vapor-X benchmarks", etc.Edited by Tsugua - 10/15/11 at 6:13am