We measured the acoustic performance of our today’s testing participants in the entire rotation speed range of their fans. The results are summed up on the following graph:
With the fans rotating at the same speeds, the noise generated by Cooler Master Hyper 612 PWM turned out a little higher than the noise from Thermalright True Spirit cooler. However, this difference is minimal and at high fan speed Hyper 612 PWM sounds even better and smoother than the competitor. The new XtraFlo fan doesn’t crackle, but at 850-900 RPM you can clearly hear the electric sound of its motor. If you are one of those uncompromising adepts of absolute quiet, then this fan is not for you.
The eighth Hyper cooler from Cooler Master turned out a very good and efficient product with all the advantages of a contemporary CPU cooler. It comes in a secure and informative packaging, is completely universal and is bundled with an additional retention kit for mounting a second fan. It is well built and looks attractive, is efficient and supports PWM rotation speed control, which makes its fan moderately noisy up to 1100 RPM. Moreover, Cooler Master Hyper 612 PWM will ensure processor stability at very high frequencies and core voltage settings. And it could have really great future lying ahead, if it wasn’t for Thermalright True Spirit. The comparatively low price of this solution makes users question how reasonable the choice of any other air-cooler priced at $40+ would be, and the 50-dollar Cooler Master Hyper 612 PWM is definitely one of them, too.