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Considering system reqs for rage a 6750M should run it very well.
(Minimum Radeon HD4200, recommended Radeon HD5550)

However, I do not believe Radeon 5550 is fast enough to run Rage well.
On nvidia cards it recommends 9800GTX which is twice as fast as 5550.
Also ATI4200 vs GF8800?? I do believe GF8800 is five times faster.

System Requirements
Minimum:
OS: Win XP SP3, Vista, Win 7
Processor: Intel Core 2 Duo or Equivalent AMD
Memory: 2GB
Hard Disk Space: 25GB
Video Card: GeForce 8800, Radeon HD 4200

Recommended:
OS: Win XP SP3, Vista, Win 7
Processor: Intel Core 2 Quad or Equivalent AMD
Memory: 4GB
Hard Disk Space: 25GB
Video Card: GeForce 9800 GTX, Radeon HD 5550
 
Thanks! I was wondering when someone would post a vid.

Even 30fps looks pretty good to me. Sometimes a game will show 30 fps in fraps but feel sputtery.
 
I have the 6750m on a 15" and I can't get it to work on Bootcamp windows7 x64. Did you have to do anything besides load the bootcamp drivers to get it to load? It simply crashes on startup for me (rage).
 
Make sure you have the most up-to-date drivers available. Don't have a link, but I know on the Macbook Pro and this forum, there's links to the new driver which is 11.11c.

Updated drivers can make a huge difference in FPS in a game.
 
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