Card time credit credit/sec Credit/24h/card
GTX 590
4280
6528
1.53
131,780.19
HD 6970
2000
6528
3.26
282,009.60
Considering that the GTX590 cost 2x as much as the HD6970 ($800 vs $350) and is a 'dual gpu' card vs 'single gpu' the fact that it gets 1/2 the daily output is horrible. When I ran my GTX590, Moo! used both gpus on a single task and I still got worse times. Not worth it unless this is the only project you run.
If you want the gpu stats per core for the GTX590, just divide by 2 and be sad.