Summary: I just needed a cheap card that had dual-link DVI to power desktop and play some occasional internet video. This card does a great job and does it without any noise, no squealing no fans. I just wish it had a displayport output instead of VGA or HDMI.
Summary: I bought to upgrade from a Radeon HD4350 and there is a noticeable difference in performance. The 4350 was ported to an hdmi adapter which worked al-right but I needed more power to run the video on the HTPC so this 6450 does well and I don't have to worry about the handling of any files as long as I have the codex.
Pros: Easy to install, no 6pin power needed, HDMI port
Summary: Bought as a temporary card after my 8800gt finally died. Paired with my C2D 6750 (2.6ghz), I loaded up World of Warcraft. Expected it to be unplayable, but to my surprise in 1080p, with "good" settings (water turned to low) it's doing 25-30fps in Orgrimmar. Handles Minecraft no problem. Max Payne 3 in 720p is very playable with normal settings. Temp is 55C in game, I may stick a small fan on the card if it gets too hot but so far it doesn't look like it will need it.
Pros: Cheap, quiet, low profile
Cons: Turning on DX11 quality (water shaders etc) really slows it down
Summary: I got this to free up shared memory on my little Acer Aspire with a compact case and only 220w PS. Image is sharp and clear, brightness is good. Video is better than the on board. Only issue is the VGA connection is on a separate plate from the DVI or HDMI so you need 2 openings to fit all outputs. My Aspire only has 2 openings and one is taken up by the wireless so I can't use the VGA port.
Summary: Worked fine with my A6-3600's GPU in crossfire mode. Adds a moderate performance boost to the on-board 6530D. BTW, remember to attach your monitor to the ON-BOARD graphic card output if you are using the same setup, as this card is actually weaker than 6530D.