AMD news, reviews and general info website AMD Zone has decided to put them under the test, to check out exactly how well they perform. Using a laptop with Windows XP, an Athlon 64 3000+, 512MB of DDR333 memory and the Radeon Mobility 9600, AMDZone carried out a number of tests.
The driver release notes lists a bunch of performance problems linked with Direct 3D and OpenGL when running applications like Serious Sam 2 and Quake 3. Maybe that can be fixed, though.
AMDZone don't seem to be too keen on the driver's performance with their first test, using 3Dmark 2003 - in their own words, they "confirm that the Radeon 9600 Mobility with these beta drivers does indeed perform poorly". When tested with Final Fantasy XI, they got similar results - not looking too good. The Unreal Tournament 2004 demo also tested badly, however, Halo ran quite nicely according to the site. µ