I have GTX 950s, but they're 4GB models - still able to mine ETH on them at 10-11 Mh/s - but 2GB models won't work any more due to the too large size of the ETH DAG file.
 They MIGHT still work on ETC though, as I believe the ETC DAG fill is a fair bit smaller.

 Might want to try NiceHash on your rig, see what it comes up with to mine.