[steelbrain]

You’re missing another variable here. In your case it may just be the thermal interface material (TIM) isn’t doing a good job of transferring the heat from the processor onto the heat sinks that the fan blows over.

I’ve had temperature drops of over 15 degrees c by opting for Liquid Metal, everything else being same.

[111111IIIIIII]

Additionally, loudness is not necessarily correlated with actually moving air. It can often correlate with obstruction to moving air.