The reason for this post is that I'm worried that because notebook drivers are maintained not by AMD but by the notebook manufacturers, and the manufacturers are notoriously bad about updating video drivers, that we notebook owners may never get a chance to play Rage. Is this concern unfounded or something to be genuinely concerned with?
I have been playing the game with excellent frame rates at 1920x1080 on my hp envy 15 laptop with a second tier GPU (AMD 5830m) since Oct 3.
AT first I experienced CTD on startup, but after installing the Oct 3 hotfix I was able to launch the game normally and it ran very well, looked stunning. In a couple of locations, very briefly, there were flashes of striated artifacts (thin diagonal lines), such as in the Ghost HIdeout. This was very rare and difficult to capture with a screenshot because it was so brief when it happened.
Then I installed the Oct 4 drivers and tweaked the Steam launch settings and played the game again yesterday. This time I did not experience any striated artifacts, but occasionally I would see phantom bullets/gun parts floating next to my weapon and when I got to Wellspring I noticed NPC flickering/artifacting. The frame rate was consistently excellent, megatexture streaming was very fast, no pop-in problems, and apart from the artifacts, the game looks absolutely stunning on my laptop.
I have not tried any rageconfig.cfg tweaks.
There is not really any difference between laptop/desktop AMD driver issues that I'm aware of. For example, my 5830m is based on the same die as the desktop 5770 and people with the desktop 5770 seem to have similar issues. Also, I have never needed to install special mobile drivers, etc., if you have a recent version of Catalyst Control Center (within the last 12 months), you can install any hotfix easily without uninstalling the previous drivers/registry sweep, etc.
In any case, keep an eye on http://twitter.com/#!/CatalystCreator for updates on the next AMD Rage/BF3 Unified Driver, coming soon.