The system was left to idle in a room with a temperature of 30 degrees Celsius. After 30 minutes without use the idle temps were taken. Following this PCmark and Prime95 were run for 30minutes and the load temperatures were taken.

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Before we look at the Nautilus performance it should be noted that the AMD stock cooler which came bundled with our FX-60 is an exceptionally quiet and efficient model. It even rivals the Arctic Cooling Freezer64 so the air-cooling scores are about as low as you will get on any air cooling.

With the above in mind we look at the low fan speed results of the Nautilus and see that at idle the unit manages to knock 10 degrees of the temperature of the FX-60 bringing it down to only 8 degrees more than the test room temperature. Looking next at load speeds we see that the reduction in temperature is now 12 degrees and is in fact 6 degrees lower under load than idle temps on air cooling.

Flicking the Nautilus speed selector to high bumps up the fan speed by 500rpm and further reduces the temperature by 1 degree at idle and 2 degrees at load. We did feel that at the higher rpm the unit was a little louder than the stock AMD cooling however part of the reason for this is the fans are not sealed away in the case.