I've tested this game on my 1800X and see no noticeable difference in temperature.
What settings are you using? Is there a Physx option? That may increase CPU usage/
so these are my results: Ryzen 1700X Tctl=73° Tdie=53° Gpu (1070GTX) 82°, no throttling and no shutdown...settings: all max, and vsync off, which loads CPU more than vsync on..first 20 minutes of the game..
Hi, so I found the culprit, but I don't understand the reason behind it.
In the Nvidia control panel physix were set to run on CPU, and that caused the CPU to overheat. I set it to GPU and now I reached 74 after over 30 minutes which is ok.
Now what I don't understand - Physics loads a lot of the CPU, ok, but stress testing loads 100% of the CPU and did not reach this temperature, what is different?100% cpu usage is 100% cpu usage....how can one usage heat it more than another one?
its all in the coding. like prime 95 loads 100% but its very extremely hard on cpu and really shouldnt be used. and runs hot hot.. aida64 loads 100% and not as hot. its all about the coding..
I did a test last night and was just about to post this CPU Physics "fix" which also happens on a 7700K I have - on an 360 AIO - so it doesn't seem to be just on Ryzen CPUs. It is indeed strange as you said that the system will undergo other torture tests, but start to throttle within 5 minutes of running with NV's Physics options CPU bound. Luckily I don't use this system much or I'd search on the NV forums for answers.
It is not as pronounced as the OP's case, but going from normal P95 stress temps (~52 - 55C) to CPU bound physics (~83C) is much higher than what I'm used to. Disabling the physics option in Last Light Redux drops the running temps to the low 70's. If I'm not mistaken Batman Arkham does a number on physics too, I'd love to see someone test that out for the heck of it.
I will install batman A. and check it. This will take some time, as my network is very slow (new buildings, no cables yet...).