If you have got enough rad space fans are not needed.
Also do you game with your 1080 @idle, no I don't think so.
4 watercooled Titans @100% produce no noise and you can game on them too.
You are just making yourself look silly with this argument.
I also own a number of cards with AIB partner coolers which are about as good as they get for air and yes they do make a noise.
Don't change the parameters of your argument when you've run out of facts! And don't suggest I'm making myself look silly in an attempt to close this down. I'm not the one suggesting that 4 titans at 100% load with with moving pumps and fans will make less noise than 0db!