I tested both the stock heatsink and NB MAXX to see what kind of difference there was. To test this product I put a probe on the northbridge so that I could get an accurate reading of its temperature. I am only really concerned with the load temperature of the northbridge so I booted up windows and ran Prime95. As you can see at load the stock heatsink was at 37 degrees Celsius and the NB MAXX heatsink was 35 degrees. I am very impressed that the NB MAXX was able to achieve a lower temperature than the stock heatsink because it doesn’t have a fan blowing over it. The fact that this heatsink is able to cool the northbridge better than the stock heatsink and be completely silent makes this product extremely good. I don't think there is really much more to say than the fact that this product rocks.