Seeing as how the Silent Boost is a silent fan operating at about 2500 rpm, I was expecting its operating temperature to be much higher than with the stock AMD heat sink and fan. This however, is not the case as the heat sink is about twice the size of the AMD. Simply put, this thing looks almost heavy enough to break or bend the motherboard under its weight. Don't get me wrong though, it won't break anything unless you use too much pressure while installing it. Another highly noticeable characteristic of the Silent Boost is the unique shape of the fan housing. The housing is not a solid column like all others, but has intake slots in it to further reduce noise levels while increasing the throughput of the fan. It's very different from anything else on the market and ThermalTake claims that it will minimise noise while providing optimal air flow. Either way, it seems to work pretty well.