Chad's CPU Cooler Test System Specifications
- Motherboard: ASUS ROG Maximus VIII HERO (Intel Z170) - Buy from Amazon / Read our review
- CPU: Intel Core i7 6700K - Buy from Amazon / Read our review
- Memory: Patriot Viper 4 3000MHz 4X4GB - Buy from Amazon / Read our review
- Graphics Card: MSI GeForce GTX 1060 6GB OC - Buy from Amazon / Read our review
- Storage: Corsair Neutron XTi 480GB - Buy from Amazon / Read our review
- Case: INWIN D-Frame - Read our review
- Power Supply: Thermaltake Toughpower DPS 1050W - Buy from Amazon / Read our review
- OS: Microsoft Windows 10 Home 64-bit - Buy from Amazon
- Software: RealTemp 3.70, AIDA64 Engineer 5.75.3900, and CPU-z 1.77.0 x64
To see our testing methodology and to find out what goes into making our charts, please refer to our CPU Cooler Testing and Methodology article (October 2016) for more information.
Fifty-eight degrees does not look great in the chart, but it is less than seven degrees from the top of the chart. We found it to be two degrees warmer than the original Mugen 5 Rev. B, which is a shame, but adding a heated cap to a CPU cooler will tend to do that.
If we compared the 73.75-degree result we get with the Mugen 5 ARGB with the direct competition, it does fall between the similarly priced DRP4 and falls just behind the H150i PRO in balanced mode, which feels about right to us. However, at the same time, there are a dozen options in the chart for air coolers that can do better, regardless of cost.
With one of the more significant gaps in thermals between the PWM and running the fans at full-send, to the tune of three degrees, while not an OC killing difference, goes to show that with different fans strapped to the tower, more thermal efficiency is there for the taking!
Noise Level Results
When we ran the stock test, we leave the fan under control of PWM, and while our idle speed was 435 RPM, the fans did creep over the 800 mark, to 810 RPM. At this point, the sound is well managed with a reading of 25 dB of noise in the open air, without a chassis helping to deaden things.
With the overclock applied, still, with fans controlled with PWM active, our fans got up to 1075 RPM, leaving roughly 500 RPM unused. Many will appreciate the fact that the fan is still at the lowest end of audibility with a 29 dB noise level at this speed.
Pushing twelve volts through the fans, we did see them top out at 1555 RPM, but we now understand why the PWM curve is what it is. To get that last bit of performance out of the tower, the noise increases a bunch, up to 47 dB. By far, not the worst, and tolerable for us, but not what you want to do if silence is the name of the game.