Yes. It is loud. It is high pitched. You will most likely hear it over your present configuration.
I have a high-output Sunon 80mm drawing air in, and I can still hear the 7000rpm Delta over it.
It really does cool well, but it's better as a server cooler. Unless you always play music on your computer very very loud.
Imagine one of those small 1600watt hair dryers on low/med. It's like that.