I was getting about 14-15fps at the time I took the shot, but I usually get 20 when I'm not over a large city (I have it locked at 20fps). I'm happy, because I used to get 20-something fps with no autogen at all until I played around with settings/fsx.cfg

I've got an Athlon 64x2 4400 processor @ 2.3GHz, an NVIDIA 86-or-8800GT, I can't remember, and 4MB RAM.