For noise, I'm not sure that it is so quiet, compared to the reviews I had read. Even when one perceives the difference with the former, but it is not the pure silence. For temperatures by cons, there is day and night. I greatly reduces these, whether at rest or in games. Moreover, it is in the latter that the difference is most obvious because earns about 15 degrees.
In short a very good alternative price / quality if you want to replace the Intel fan, so do not expect miracles either considering the price :-)
Attention to the size, it is quite large!
