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.
Thermaltake was able to shave off a couple of degrees by using the copper outer layer of fins, and the cooler is a great little performer. Unfortunately, many other companies have really picked up the pace with new designs and have better performing coolers at a lower MSRP.
We saw little change in the MaxOrb to the MaxOrb EX when it comes to sound pressure. Since we test all of the fans at their highest settings, the chart shows the new EX running very loud. But since the cooler has a built-in variable resistor the end user can detune the cooler to achieve a much quieter experience without taking away a large portion of performance.