I'd rather spend $30 extra to get preoverclocked XFX 7900GT 550/1630 card. The fan on it is adequate and it shouldn't be awfully loud since it runs at 2000 rpm. I am not sure what you mean by G80 since that card isn't out. My advice is to get the card and if you are unhappy with it you can always order a cooler for it. No need to waste $30 unless you find your overclocked speeds inadequate or the fan too loud. Also don't consider 7800 series with 7900GT OC around.