I'm using a system which is able to run the very recent Napoleon Total War (for instance) at quite solid FPS (40-70) at max settings, 1920x1200, etc. However - I'm getting much worse FPS from a flight sim based on a 9 year old game engine.
I take it something quite radical must have been done with CFS3? With the vanilla game, I get FPS of 200+(!) or so with all details maxed out IIRC. Now, with details at "default" (22221), I can just barely hit 60fps and get a lot of stuttering when looking around (feels like textures are being loaded). I've tried lowering the res all the way down to 1280x800, but there's not much improvement. It feels like the game is very heavily CPU-dependent, since my video cards are considerably stronger than my CPU in this case.
The system: Dell XPS M1730 notebook, Core2Duo X9000 (2.8Ghz), 2x8800GTX SLI (SLI settings don't matter), 4gb RAM. I've tried Win7 X64 and then reverted back to XP 32-bit just to see if perhaps that was the problem - same problem with lower-than-expected FPS.
As a final reference, this machine will run Lock-On 1.12b at 1920x1200, all settings high (except Vis range-medium) at a solid 60-120FPS with zero stuttering. IL2 1946 - I get 60-100+ FPS with max settings (although I'm running with Vsync on most of the time). Likewise, Wings of Prey runs much better (again- full details at 1920x1200) and looks 1000% better (sorry).
Bottom Line: How do the system requirements for this game compare to other flight sims out there? I can just go use my desktop (with a 4.2Ghz Core i7 and dual 5870's), but I was hoping this flight sim would be something I could use with my laptop on the road.