2273MB of VRAM usage.
Yeah, it's modded Skyrim, like anyone could predict. Specifically inside the city of Markarth. I'm on 1680x1050 (upgrade to come), 8xMSAA, 16xAF, quality SSAO. I'm not half done modding this game yet, but I noticed my VRAM usage is already well above 2GB in several locations now, so I thought I'd inform you guys.
I'm now on a 4GB GTX680, non overclocked for now (temps are a bit higher than normal because I had to remove a few case fans that broke).
I have done nothing to provoke high VRAM usage (no 4K textures for butterflies and potatoes etc, have not yet touched the vanilla *.ini files). The image is not photoshopped. All I've done is install the 2K HD texture mods, some lighting mods and various other smaller mods. As I said, I'm not done yet so I expect VRAM usage to go up even further soon.
Normal VRAM usage outside currently seems to be around 1.6GB -> 1.8GB. I see 2GB+ mainly in the cities of Markarth and Solitude. I expect outside VRAM usage to go much higher when I start modifying draw/load distances and such in the *.ini files.
Anyway, this is only on 1680x1050. My point is that I don't think 2GB is very future proof, especially for any higher resolutions, when it takes as little as this to make a modern game cross that limit. That said, you'll be fine right now as long as you stay away from modded Skyrim - or if you are willing to turn down settings such as AA, but for how long?
EDIT: After *.ini tweaks I'm now pretty much constantly above 2GB usage outdoors, peak so far has been 2432MB usage. Still climbing as mods are added.
Edited by Oystein - 5/13/12 at 2:24pm