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.
The Thermaltake DuOrb does a really good job scaling between idle and full load. This is due to the mass of the cooler and the fans ability to move a great deal of air at full tilt. Cooling performance wise, the cooler is able to keep up with Thermaltake's Pro Water 850i cooler we looked at last week; very impressive.
By using dual 80mm fans, the DuOrb had the potential to be a noisy beast; yet Thermaltake resisted the urge to use aggressive fans making the DuOrb fairly quiet. I was surprised to see the cooler came in quieter than the Pro Water and the MaxOrb/MaxOrb EX we previously reviewed.