(2019) 16" is HOT & NOISY with an external monitor! :(

[Wokis]

I have no issues with i9 mb16 whatsoever.. maybe i do not care about occasional fan noise or a bit warmer body…

I would guess this is an issue for people with 4K+ or high refresh rate screens which leads to the VRAM of the Radeon GPU getting clocked to its max. The GDDR6 consumes a lot of energy and is hot at that point.

I run two 1440p @ 60Hz screens and it has indeed not been an issue since I believe Big Sur where they moved the threshold for when the VRAM gets upclocked.

The Radeon 5600M HBM model should be excempt from most issues posted here, but not many own that one.

 

[coach_ditka]

I upgraded and have no issues with the wattage or heat beyond Big Sur, which for me were not as bad as with Ventura.

 

[sack_peak]

2019 MBP 16" owners:

Be aware that our notebook will likely receive its final macOS Security Update by 2027. 8 years rather than 9+ years.

Recently, the European Council revealed new regulations on batteries and waste batteries. It includes a new mandate stating that batteries incorporated on appliances should be removable and replaceable by the end user by 2027.

So if you only replace your devices months after official support ends then schedule your purchase for a MBP with user replaceable battery.

 

[patthedog]

This is an interesting Medium article about the 2019 MBP issue. Basically it explains running a script which forces HiDPI which counterintuitively lowers GPU wattage when connected to a 1440p external monitor.

EDIT: Thought this helped, but my MacBook is just as hot and noisy as ever.