Buckmountain, I have not set a watch to it but it is fairly fast. Less than a minute maybe? I have no idea on the inflatable, I don't own one to try, but I'm sure it's faster than my lungs!
I also learned that one of the attachments it comes with is for presto tire valves for bikes (which I do own). Nice, but it's a pain to use so I have ordered a better attachment.