Enemy Territory: Quake Wars

There is almost no difference between the new and old versions of the driver in this game except that you can see a small performance growth with Catalyst 9.8 at 1280x1024 when FSAA and AF are not enabled.

Unreal Tournament 3

There are no performance benefits with any of the cards in Unreal Tournament 3. The negligible increase of speed of the Radeon HD 4870 X2 in the low-quality image mode can hardly matter considering that the frame rates are as high as 200fps and more.

S.T.A.L.K.E.R.: Clear Sky

The Radeon HD 4890 accelerates in S.T.A.L.K.E.R.: Clear Sky with the newer driver, especially at 1280x1024. Catalyst 9.7, being the first Catalyst for Windows 7, must have been not optimized well for that game. The Radeon HD 4870 X2 delivers the same performance irrespective of the driver version.