(2012-04-07 08:42)T800 Wrote: I'm going to try a HD4650 in my HTPC after the smooth picture getting so much praise in here.
Other than un-installing the Nvidia drivers, swapping the cards and downloading new AMD drivers from here:
The drivers look like 12.3 but many people are mentioning 12.1, should I look for 12.1 instead?
Is there anything else I have to do?
I would just grab the latest drivers. We know the 12.1 drivers work well, but I haven't heard of any bugs with newer ones.
Once you've installed it and the drivers you will need to select the AMD HDMI High Definition Driver as the audio driver in both Win and XBMC, and set up your other audio settings. Make sure you enable Exclusive Mode in the Windows audio panel under Advanced.
I would also recommend going into Catalyst Control Center and enabling (under video>quality) Ensure smooth playback. There's a nice demo mode too which allows you to tweak options and it applies them to half the screen so you can see the difference.