I mainly play BF3 and I just got Skyrim last night. I run BF3 at 1080p full ULTRA setiings and 4x MSAA and I get around 75-80 fps average. I use V sync though so it always sits at 60 on the dot. I have seen up to 2000 mb vram used but it normally sits right at 1400 or so. So def get a 3gb.
I have never seen temps go above 61 degrees playing games for hours. It is usually about 59 degrees at load. This is using the stock fan profile. I cant even hear the fans at all!
Playing Skyrim at full settings with texture mods, I get 65 to 70 fps all the time. I have seen it drop to 35 but I think that was because of loading lag. I have seen this game use up to 1100 mb vram too. But it normally sits right at 700-800mb.
This card also gives me better visuals than my 6950's did. I am not sure why but everything looks far crisper and there is a lot more debris in the air while playing BF3. It is a noticeable difference.
I am so happy I got this card. It came in the best packaging I have seen to date and its build quality is amazing! I have nothing negative to say whatsoever!