Then you really are an idiot, a simple bing/google/yahoo/whatever search brings up the page you need.
Hmm, I wonder why then AMD has section called 'support drivers' and there is even an auto detection utility which btw is not working in my case.
Oh, I guess there are too many idiots around who do not want to waste their time reading useles answer like yours that give null info.
To bad, I'm going to tell you anyway, you want to use a WDDM 1.2 OS, then you need a WDDM 1.2 card for full functionality.
Focus dude. I do not care about WDDM1.2 functionality.I was talking about openGL. And all I ask when the existing functionality will work at least as fast as it does on windows XP.
You paid over $100 for Windows 8, so go out and spend $100 on an HD 7770 which outclasses your 4890.
Who the hell are you? Does ATI pay you for advices like that? Why are telling me how I should spend my money! ... and FYI windows 8 upgrade is $40 and I'm unlikely to buy another ATI card that is going to be obsolite in two years.
Heh, no kid, they're not.
Hmm you can download it right from nvidia web site ...
BTW a friend of mide will donate me his old nvidia 8900 GTX and I'm going to give it a try ... so stay tuned.