Noctua Vs Antec

So I have 8350 at 4,6 ghz cooled by Antec Kuhler 920 and its pretty daamn loud to be honest. I have been looking for new solutions such as Noctua coolers. Is it worth it to get something like Noctua NH-U12S?

You could just change the fans on the Antec cooler to Noctua or corsair ones, which should stop the noise problem and save you some cash.