AMD HD3D (HDMI 1.4a) won't work on that older card. You can see supported cards here:http://www.amd.com/us/products/technolo ... ics.aspx#2
However, even with an older card, you may still use a passive display by feeding it a interleaved signal directly (which will work on any kind of video card, even integrated). I know there have been certain issues with this depending on the model TV. This is because sometimes the TV has its own processing of the image that will ruin the interleaved signal. So this won't work 100% of the time. I don't know which specific models are effected though.