AMD cards should not use 12.2/12.3, but 12.1 instead.
How can I download 12.1?
I searched and found this link
http://support.amd.com/us/kbarticles/Pages/AMDCatalystSoftwareSuiteVersion121.aspx
But a download link is not there? Or am i just blind
EDIT:
nvm, found a DL link from techpowerup