When experimenting with a Raspberry Pi 3 I noticed that the CPU could get pretty warm.
I decided to measure the temperature during idle and load with:
And load tested the CPU with 7-zip benchmark:
Measured these temperatures:
|Without heatsink||50-52 °C||77-79 °C|
|With heatsink||47-49 °C||65-67 °C|
|Improvement||3 °C||12 °C|
I used a small aluminium heatsink with thermal tape:
The 12 degree reduction in load temperature is well worth the effort.
It should prevent thermal throttling and thereby ensure optimal performance.