I had an "old" Intel Core2 Duo in a home theater PC, and it was just to play movies in 1080p, some do not pass at all. So I turned to this low-end card, but that decodes HD streams very well, nVidia and AMD have made great progress in this area, everything goes nikel: 720p, 1080p (even at high speed), 3D ! The PC is now connected via HDMI to my TV instead of VGA + jack, I earn a cable and avoids electromagnetic interference as it is digital :)
If you are in the same situation as me, go for it!