I wish I could answer that for sure but I cant. My assumption is that you will get better cooling from a fan that can move more air. I myself am installing a fop38 black label delta fan on my T-Bird 800mhz. Its overkill but the cooler you keep your processor the more stable it should be. I would rather be safe than sorry so I am not even considering noise. Even though my tower will sound like a little turbo-prop airplane is flying around inside. Look at is this way, if my fan ever dies, I will know it.😀