Quote: Originally Posted by rmw020
Do the quiet fans not push less air, therefore less air.?
Some fans will be quieter because they push less air, or spin more slowly. But the Noctua's are quieter because of the fin design and the bearings. They are not cheap though. Look at this model, comes with 2 adapters you can use to slow the fan down to make them even quieter, but with lower airflow. But at full speed they are less than 20db. I can almost guarantee you, your GPU fan is louder than that, so you won't even hear them. They move over 54cfm at full speed. These use the SSO (self-stabilising oil-pressure bearing) bearings, quietest of all. Newegg.com - Noctua NF-P12-1300 120mm CPU Cooler and Case Fan
But also look at these Scythe fans, $10 bucks cheaper, and they move 49 cfm at just over 20db at 1200 rpm. Again, just about dead silent as ambient noise, your GPU, PSU and case fans will be noisier. These are also a superior Fluid Dynamic Bearing design. Newegg.com - Scythe S-FLEX SFF21E 120mm Case Fan