I don't know. Most of the manufacturers don't seem to list it on their features.
The best I can tell you is to look for something fairly recently released, with DX 9 support, then look for it on Ebay. Go for sellers that have an excellent track record.
That's about as much as I can tell you, because I've been thinking about getting a better card, and have been looking around a little.
Quoth the Raven; "Nevermore, nevermore."