It's just too small of a market to develop something that specific. And we are already over the peak in VGA power consumption anyway.
That being said, the reference cooler works fine, if you dont care about noise.
If you do care about noise, then different solutions will give you more quietness, from Asus DC cards to aftermarket coolers from Prolimatech or Deep Cool.
Personally i use the Alpenföhn Peter and i'm happy with it, sure the Case temps will be a few degrees higher, so i have to compromise a bit, but not too much that it'd bother me.
Furthermore you can run a 2600k @4,5GHz and a GTX680 very ery quietly with the right cooling components, so that's more thasn most people need.
And there is also the watercooling option. (The Arctic Hybrid might be something you would like
)Edited by Elohim - 1/24/13 at 5:00pm