Stock performance of the 612 is nothing spectacular, actually, it’s quite average on the chart, but it still manages to give the Corsair H105 and the Antec 650 water coolers a run for their money, which is certainly impressive.
At idle, the cooler is just 41dBa and quiet enough that you wouldn’t hear it from within your chassis. It’s a little louder at load, but nothing more than a bit of air turbulence.
This isn’t the best cooler for overclocking, but then again, it was never designed to be. However, it does run a little hot, but there’s more than enough cooling power here for those who are running mild overclocks.
What is good to see is that the fans didn’t get any louder when overclocked, allowing the 612 to beat out four water-cooled units.