My new configuration:
CPU: Pentium DualCore E2200 2,2 Ghz
RAM: 2x1GB DDR2 800MHz Kingston
Motherboard: Asrock G31M-S R2.0
GPU: Leadtek PX8600GT GDDR3 256MB

Settings:
1024x768 75HZ
HDR on

FPS With Fraps 21- 32
FPS Out Fraps 40- 64
All high settings

The game is owned by ATARI Games !