After talking with Noctua a bit, they agreed that an appropriate test would be top run them against a stock fan with a water cooling solution. They had an AIO solution in mind, but with none on hand I looked at the next best thing, my Swiftech Edge H20-320 kit that I have been keeping on the shelf for reasons such as this.
In order to get my results, I used the PWM feature as it is shipped. By this I mean that I didn't mess with the voltage settings as I typically would, I let the IC built into the fan do all the work to see just what this fan can deliver in its natural state. In the charts you will see an air cooler just for reference against the water cooling numbers used to determine the fans effects. I have also included the runs to incorporate AVX support in the runs of Intel Burn Test, so there should be fewer complaints about the heat loads, but it does mean that I have to start a new chart now.
As you can see I highlighted both the Swiftech kits as they ship from the factory and the Noctua NF-F12 PWM fans results on the same chart for an easy head to head comparison. To tell you the truth, I was shocked to see that after twenty minutes or so of leaving the PC to idle out all the processes, the Noctua fans were able to bring the CPU right down to ambient temperatures.
Even more shocking is the fact that the Swiftech fans included in the kit are near 80 CFM in their rating and even so, the near 55 CFM of the Noctua prevailed due to the design and engineering involved with using every last molecule of air within grasp of the NF-F12 PWM resulting in yet another full degree drop over the original after fifty passes of the IBT testing in both the stock and overclocked results.
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