You can tell these are counterfeits simply by the heatsink shroud used. There are primarily 2 styles. One is the one pictures, the other looks like this. The counterfeits also have a VGA port. No modern card has a VGA port anymore, so it's a dead giveaway.
Thanks for the info. I told the new owner everything I knew about the card, so to say I am pawning it off to another unsuspecting victim is pretty condescending being you have no idea what the deal was. I actually gave the card away for free to a guy I know who was using an ancient video card and wanted something better. That being said, since you obviously know more about these cards than I do, are they usable for mining at all? I know I started mining with a 9800+ Superclocked Edition many years ago, so it seems like mining would be possible if the card is really an old 450 or 550ti? I wanted to see if they were profitable at all if I ran a ton of them on a single rig but as I said, I couldn't get it working within a few hours and decided to just sell it and move on with other things since I have too many projects in the works right now.