AnandTech has taken a look at ATI's upcoming Avivo update, which will include the Catalyst 5.13 drivers:
Just earlier this month, ATI released their Catalyst 5.12 drivers, which offered support for dual core processors, but without any really tangible gains in performance as we found out. ATI had also alluded to the potential of another Catalyst release before the end of the year, and as their predictions would have it, Catalyst 5.13 is due out for release this coming Thursday (12/22/2005).
But Catalyst 5.13 doesn't promise improved gaming performance, better scaling from dual core processors or anything of that sort. Instead, Catalyst 5.13 is a little gift to Radeon X1000 owners from the Avivo team.