how to get a GPU chip to put on MB that is low power but high in graphics?

[hossein asadi]

how to get a GPU chip to put on MB that is low power but high in graphics?

 

[RustySmith91]

How low power are we talking here?

970s are a good balance of economy and performance, although 960s all the way to 980ti's all peak at 250w

 

[Mousemonkey]

Really? I have both 970's and 960's and have never seen peaks of 250w.