Without any information on your computer setup it is difficult to see if there are any Windows 8.1 drivers.
But to answer your question:
AMD doesn't support Windows 8/8.1 Operating System with any more updated drivers. At the moment AMD supports Windows 10 and Linux and, for now, Windows 7 for the time being.
You would need to look at AMD Previous Drivers to see if there were any Windows 8/8.1 drivers for your AMD hardware.