We're generally used to seeing Catalyst graphics driver hotfixes add last-minute features for freshly released hardware or games. AMD's new Catalyst 10.8b hotfix is therefore a little unusual. Check out the list of fixes straight from the release notes:
- ATI Radeon™ HD 4870 X2 and ATI Radeon HD 4850 X2 use both Graphics Processing Units (GPU) for high performance
- Ubisoft H.A.W.X with forced on Anisotropic Filtering (AF) using ATI Catalyst Control Center can improve performance for all graphics cards that support Microsoft DirectX® 10 (ATI Radeon HD 3xxx, ATI Radeon HD 4xxx and ATI Radeon HD 5xxx series of products)
Strange... and somewhat cryptic. That first fix likely has to do with performance improvements, since one would hope the Radeon HD 4870 X2 and 4850 X2 have used both of their GPUs all along. In any case, the hotfix can be downloaded right from the AMD support page. AMD only offers a single download for Windows 7 and Vista.