My 970 DP 2.0 rev B is very quiet. I rarely hear the fans speed up. In fact, after installing 10.3.5 I don't think I've heard the fans speed up even once, but that may not be accurate. My G5 is on the floor, and the only way I can hear its whisper is to lower my head to its level and get about a foot away from it. As long as you're not right on top of it, you should not have any problem with noise.