Ati Radeon HD 4000 drivers for Windows 8, fix for slow OpenGL games, yes, including Minecraft
I’m making this post solely for the purpose of people who can’t find a solution for this.
If you have a Ati Radeon HD 4000 or lower like me you’ll notice that there are no drivers for Windows 8 listed when you go to the AMD website. AMD only supports Windows 8 from the 5000+. And the stock ones from Windows 8 are useless, mostly on the OpenGL side, some games won’t even load, or run really slowly, like your beloved Minecraft which uses OpenGL. The stock drivers won’t even allow 2048×2048 textures
After some digging around the internet I found this article for old legacy drivers under Windows 8, weirdly not displayed on the list. So here you have it, it worked properly for me.