Sounds low. Comparison:
Laptop here! So everything is slower! Getting 75-100 FPS with this:
- i7 2820QM @ Stock 2.3GHz
- GTX 485M 2GB (270.61 WHQL)
- 16GB RAM (Doubt it makes a difference once we're past 4)
- Win7 x64
- Resolution: 1920x1080
- Shadown: High
- Textures: High
- Anti-Aliasing: Enabled
- Motion Blur: Enabled
- High Quality Post Processing: Enabled
- Ambient Occlusion: Disabled
- V-Sync: DIsabled
Enabling AO sends me into the 30s >_>
Me being on a lappie my GPU is probably comparable to yours - I've got more texture ram, but ill bet its slower than yours too. My CPU is deffo slower. Brink is a 32-bit app so it can use more than 4GB of ram, so ram dont matter ... so the only real difference is that your driver is rrreeeeaaaalllyyy old. Might be worth a try.