models supporting CUDA1.3 gtx275?

Hi there, I am looking for an affordable card that supports atomic operations on shared memory. Does GTX275 support CUDA 1.3?
Which other models do (apart from 280+)? Thanks for a quick reply!

Yes the GTX275 supports this. As do the GTX260/280/285 and GTX295.

There is a list in the Programming Guide Appendix A.1. I think the GTX260 is the cheapest with CC 1.3.