Just finished assembling my new computer and have some preliminary results.
Outerra on the machine specified in the thread title does over 400Fps at all default settings.
At nearly maxed 960p Terrain quality metrics and AA at 4x I get approx 200 FPS dropping as low as 175pfs depending on whats happening. I could probably gain more at low levels by turning down the grass settings, but why bother?
Shadows are at max, tree rendering range maxed, Resolution 1920 x 1080@60.
Newest drivers show no graphical errors (runways and roads are fine, trees are not purple.
Only consistent problem is that Outerra crashes (always!) on exit, now.