I'm seperately posting this because I didn't want it intertwined with gameplay stuff
I turned everything up to the buillt-in "high" setting last night, along with setting the rez to my LCD's native 1680x1050, just to see how terrible my framerate would be. And while I wouldn't call it playable, it was considerably better than I figured it would be. There were even expansive outdoor places that gave me barely-double-digit framerates, which I never expected to be quite that fast
And as a rig reminder: old crappy Socket 478 Presc"hot" 3.0E at 4.0Ghz (I've had to turn it down, got some bad caps on my board
), 2Gb of ram at DDR417 2.5-3-3-5, and one of those Gainward Bliss 7800GS+ cards that had the full G71 with all 24 pipes open and 512mb of ram. I bumped the card to 575/1450, along with the newest beta Dets (169.09 or something?) All on Vista32, which I'm still considering building an XP install on a seperate drive "just to see"...
I eventually discovered that I can run several settings at high without any huge loss in framerate. Shadows, volumetric effects and physics stay at mediumfor sure, I can't remember the others right now. Still, one thing that made an incredible difference was shaders at HIGH. Quite nice indeed, and not nearly the framerate hog I had imagined -- at least on my rig. I still have to run no more than 1280x800 rez though.