MBP 16", 5600M thermal throttle....DONT BUY THIS COMPUTER

Keep in mind, that the surrounding conditions also have significant effect (room/air temperature, restricted airflow due to it sitting improper, etc)

I am actually not surprised it's throttling. A more powerful GPU with the same cooling used for the other lower powered ones is quite a predictable result.

I’m sorry to desagree with you...
The MBP 16” with 5600m is a gaming beast.

IMHO the error is to use it with old adrenaline drivers, since they are not optimized for 5600m, yet.

At the moment I’m running it with standard AMD 19.50 official drivers and I’m enjoying Red Dead Redemption 2 1080p at High settings at 50fps, Horizon Zero Dawn 1080p on ultra at 40-50fps and The Witcher 3 at full resolution (3072x1920) on ultra at 50-60fps.

What is crucial to not incur in thermal throttling is to let the Mac “breathe”: I use it on a metal stand or on a flat wooden surface and it’s smooth ad butter.
I experienced some stuttering only when I placed it on top of my kitchen table with a tablecloth underneath and when I used it leaning on the couch seat: in both cases the air wasn’t flowing well in the air intakes on the bottom: by moving the Mac on a flat and rigid surface, in half a minute it was running to 50-60fps again.

Hope this helped

You "mine is fine" guys are just dealing with the problem because you are ok with shit performance. Remember you are trying to game on a $3000 machine and getting xbox360 performance and FPS. There is no fix. This is a thermal problem with the VRMs pulling power from the CPU/GPU. Putting the cooling pads on the VRMs basically turns the bottom of the machine into a giant heat sync. Thats not good. You are absolutely COOKING the rest of the board and the battery. Forget making the bottom too hot to even handle or put on your lap. This is all snake oil fixes like netuering the performance of your machine by turning off turbo boost and down volting the CPU/GPU packages. This is absurd that we need to do all this just to BARELY get 50-60fps in aging AAA titles. Im not ok with the performance Im getting with my THREE THOUSAND DOLLAR laptop. And the OP had it right. Dont buy this if you are looking for a gaming machine of any kind. Get a PS2 and you will basically see the same performance.

You are talking about comparing performance of a top desktop solution, needing over 240W alone, with a mobile GPU, using about 50W at full power...
This is not related to thermal throttling.

I was referring to thermal throttling problem and I can say, in my experience, that performances are very good for a laptop solutions and I didn’t experience any throttling issue while gaming for 4-5 hours in RDR2 at High-Ultra setting.
I tested it with MSI afterburner on; monitoring both power consumption, usage% and clock of both GPU and CPU.
I’m running it on my MBP16 mounting a 5600m supported by i9 2.3GHz. FPS go from a minimum of 40 in very crowded an complex areas (Saint Denis) and/or during heavy post-processing scenes (mostly at dawn/dusk because of the “long shadows”) up to over 90fps (vsync off) in open areas; I’m running it at 1920x1080, with custom settings (motion blur off, reflections at Mid, almost everything else at Ultra, except shadows at high, volumetric effects at medium-high settings).
I played the game for may hours (yesterday over 4hrs continuously), I did not notice any drastic drop in performance, GPU is at 99% usage almost all of the time; CPU is (50-80%); temperature of both is about 75ºC up to 79ºC without any need of FansControl SW.
Probably I’m just lucky; probably I did found a “sweet spot” for settings... but I can now enjoy RDR2 on the go, with the same machine I’m using in my job for heavy graphics and for productive activities (I work in the videogame industry).

Of course, this is not even near to what an RTX 2080 can achieve...
But I’m not expecting it to be, since the whole laptop (CPU, GPU, Monitor and cooling system included) is needing less than half the power of the external GPU alone needs...

Anyway, I’ll run further tests using other heavy AAA games, just to see how the MBP is handling them and if thermal throttling occurs.
Should you have any suggestion on (and settings), feel free to suggest.
At present, I already tested Horizon Zero Dawn, Red Dead Redemption, X-COM Chimera Squad, The Witcher 3.