ATi Catalyst 3,2 - 5,1 driver comparison
Site I think is in German, so the translation can be alittle off but that Half Life 2 frame rate ParoxysM post is interesting as per this site they can nolonger test the 5.1 driver
"Note: The values of the Catalyst 5,1 are missing so far, since due to some updates the time demo used by Half Life 2 does not function any longer."
Also wonder what card they are testing it on as this reviews frame rate are alot lower on the 4.11 and 4.12