Skyrim was the main reason I opted for a 4Gb 670 over the 2GB one. Before my reinstall I used to run it at Ugrid 11, but for some weird reason I started having very frequent crashes (like every 2 minutes or so) only in Solstheim (and not in mainland Skyrim). Now I started again from Ugrids 7 planning to move up very slowly. I'll have a look at that. Wow what mods do you have to get such high Vram? All the texture ones I had (before starting over) never got me above 4GB for sure (I never measured it actually but my fps were always in the 50-60 range..