How about offloading physics from the CPU to the GPU? I tried this with "Warmonger" and more than tripled my FPS.
Here is the opening room in the tutorial in "Warmonger". I used 1920x with all sliders to the right, or max.
177.41 = 20FPS
177.79 + PhysX 8.07.18 = 63FPS
According to nVidia 10 titles supporting this will be out by Christmas, and 14 more next year.
This could make a lot of upcoming games that might be unplayable @ 1920x max settings, playable. That is if the game supports it. Moving from 50 to 100FPS isn't that big of a deal to me, moving from 20 to 63 is.