https://wccftech.com/galaxy-note-9-massive-thermal-heatpipe-solution/

Sleeker devices might mean a higher aesthetics score for a smartphone, but it will result in poor thermal management. In the majority of the cases, manufacturers do not employ the use of a large heat pipe in order to maintain the smartphone’s thin form factor, but Samsung might not be choosing the same route with the unveiling of the Galaxy Note 9. Apparently, the flagship phablet with come with a very large and effective thermal solution in order to maintain the performance of the Galaxy Note 9, and this is going to be beneficial in several ways.

Reportedly, the Galaxy Note 9 will be excellent at maintaining its performance, whether it features a Snapdragon 845 or an Exynos 9810. In fact, if the report turns out to be true that the flagship sport a large copper heat pipe, it is possible that the processors running in the aforementioned chipsets will be able to run above their specified frequencies, much like the case with the ASUS ROG Phone.