You know you can get 1900 h/s or more on Cryptonight with those cards? There is a guide on Reddit.

https://www.reddit.com/r/MoneroMining/comments/74hjqn/monero_and_vega_the_definitive_guide/

I know this is from 2 months ago, so I hope your mining Monero now. If not, come to USXMRPOOL.COM