densetsu42

Okay, at first it appeared that the 4gb patch had taken care of this entirely, but upon further review it seems it only extends the amount of time i can play without the issue returning. My new fix is to, immediately after exiting an interior, hit ctrl+alt+del, click task manager (this is windows 8.1) and the task manager will instantly minimize, skyrim screen goes black for about 5 seconds, everything comes back kind of bright for a sec like the shaders hat been reset or something and it works great til the next time i come outside. Much faster than restarting the game. Btw, using gtx 650ti, amd quad-core, 8gb ram, realvision b full and 255 esp/esms activated

Had this identical, very specific-seeming issue. Load the game in an exterior, whiterun in this case, getting 30fps. I consider that playable. Dip into belethor's place, everything looks fantastic, 50fps. Head back out, 8 fps. Not playable. Then i remember something i used to use for morrowind.. If you have this issue on a 64-bit OS, try the 4gb patch to allow the 32-bit skyrim executable to use twice as much ram as it thinks it should need. Just point the patch's exe toward tesv.exe. cleared it up right away http://www.ntcore.com/4gb_patch.php