Test System & Test Results
TweakTown uses a different method for testing CPU heatsinks which allows for an even playing field across all product tests. We feel that by using the same ambient temperature and strict lab-like testing procedures we are able to accurately compare one product to another. More information on our testing procedure can be found in the T.E.C.C. article here.
Comparing apples to apples here is a tough one, as most of the coolers on this list are both a lot louder, and usually boast a much better CFM rating. I feel the Tranquillo is on par with performance with a lower output fan. Seeing what this cooler can do with limited airflow, it stands to reason if sound isn't an issue, you could easily slap a 100+ CFM fan on here and keep up with the bigger players.
At 58 CFM I would expect the fan to be on the low end of the spectrum here, but I didn't realize it was going to be anywhere near this quiet. Testing with all the same methods and equipment, I found the GELID Tranquillo fan to have just a bit more noise than what a Noctua fan user is used to. Those who have had the joy of using those fans can understand a fair bit better what sort of accomplishment this is. While there was a bit of performance lost, the dead silence during even loaded operation is outstanding.