You want to add fans to a computer case, or replace those that came with it. You want to put a fan on a heatsink, or replace the ones it came with. Often you want to know what fan to get for a particular application, and for good reason you don’t trust the specifications that sellers publish. The best way to decide on what fan to use for a particular application is to test a lot of them. Or you can read reviews where a lot of fans are compared. This is such a review.
Sixty fans are set up in 71 variations on a test system set to two heat levels -- a mild overclock and stock -- designed to see how well various fans cool, and how much noise they make doing it.