The HD6950 especially if you are 1080P res or higher!
Yes I use 1920x1080.
Even stock GPU fans aren't loud at idle. The cards downclock at idle so they use less power and therefore stay cooler. Just make sure you have good airflow in your case. If you can afford it, go with the 6950.
Yeah I know, but still depending on the cooler there could be a bit of a difference, even @ idle...
6950 especially if prices are that close
OK, I guess you guys win, I'll get the 6950 then. Thanks everyone.