I have a Radeon card and am outputting via HDMI to my Samsung HDTV. The quality of everything looks fine to me, even video games. The only issue I see is video. When I output from a 6 year old PC to the same TV via VGA video looks perfect, when I play the same video in the new modern PC the video looks grainy with artifacts. I have googled and see people having issues that affect the whole picture, in my case the issue is only with video playback.