Stock AMD & Intel Coolers

Cooling
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TEST RESULTS

Noise Measurements

A10-7860K Stock Cooler
PWM Setting
Speed
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100%
3460 RPM
38 dBA
80%
2960 RPM
33 dBA
60%
2550 RPM
29 dBA
50%
2400 RPM
27~28 dBA
40%
2060 RPM
22~23 dBA
30%
1790 RPM
18~19 dBA
20%
1480 RPM
15 dBA
0%
940 RPM
12~13 dBA
Measuring mic positioned 1m at diagonal angle from the center of the heatsink.
Ambient noise level: 10~11 dBA.

The A10-7860K stock cooler has a huge fan speed range, from under 1000 RPM at the minimum PWM setting to 3500 RPM at its peak, with noise levels ranging from an almost inaudible 12~13 [email protected] to a thundering 38 [email protected] By our standards, it needs to run at about 2000 RPM or lower to truly be quiet, though undoubtedly this will cause terrible performance.

For a stock cooler, the AMD model's acoustics are not too bad. At under 2000 RPM, it's pleasantly smooth. As the speed picks up, so does the pitch, with the fan becoming increasingly buzzy and whiny. The sound it produces is fairly consistent though, as indicated by the frequency distribution above.

Intel i7-6700 Stock Cooler
PWM Setting
Speed
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100%
2010 RPM
28~29 dBA
80%
1750 RPM
24~25 dBA
60%
1500 RPM
20~21 dBA
40%
1260 RPM
17 dBA
30%
1140 RPM
15 dBA
0~20%
1020 RPM
14 dBA
Measuring mic positioned 1m at diagonal angle from the center of the heatsink.
Ambient noise level: 10~11 dBA.

The Intel cooler tops out at ~2000 RPM and 28~29 dBA though its minimum speed and noise level is a tad higher than the AMD model. Shoot for 1600 RPM or lower to generate quiet operation.

Of the two coolers, the Intel model has clearly poorer acoustics, with tonal elements evident throughout its range. At lower speeds, it generates a noticeable hum underlied by a faint buzz. It's actually better at moderate speeds as the added turbulence helps even out sound profile. At high speeds, it's smoother still, but the higher pitch produced is more annoying.



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