change these two settings and watch skyrim start using ~3g
uGridsToLoad=5 to =9
iShadowMapResolution=4096 to =8192
when running these settings
2560x1440 no aa default textures
uGridsToLoad=7
iShadowMapResolution=8192
gtx480 sli 1.5g would drop from 60 to 3fps which seemed to be simply due to lack of memory
now have a 3g 7970 and despite being a fair bit slower the fps only briefly drop to 30fps while some files are shuffled then it goes back to ~60fps with texture packs installed which puts the memory usage even higher
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