A performance review regarding 4 previous generation VGA cards has been uploaded and it's available for viewing here. The Video cards we reviewed are the following:

Sapphire Radeon 9800 Pro Ultimate edition 128MB
EXAIR RADEON 9800 XT 256MB
ASUS V9950 FX 5900 GE 128MB
EXAIR GEFORCE FX 5900 XT 128MB