I apologize if this has already been answered before, but I couldn't find it so I have to ask:
While I mine with my 7950 and sgminer, although my GPU runs very cool and with only 47W, sgminer is using up 26% of my CPU.
This does not allow the CPU to go to power saving mode. In the end, I end up spending a lot more power to mine darkcoin compared to every other coin in the market.

Is there a problem with my sgminer config or is it like this by design?