As I said, check out the spec sheet for the chip in question. That is what will tell you what the Tmax for it is. This is the maximum "normal" (as in it's the upper end of the allowable temperature range, and should not be constantly at that temperature when idle or under less than high load) running temperature.
This is generally significantly lower than Tcritical, where the device will throttle a few degrees below it and shut down without warning if it's reached.
As an example, take the AMD A12-9700P APU that's in my machine. Here's the spec page from cpu-world.com:
The Tmax for this chip is 90° C. That's an awful lot higher than 76° C, and that's not an atypical Tmax figure for many more recent processors.
If you're concerned specifically about your GPU the manufacturer should put out a specification sheet that notes its Tmax and, sometimes, Tcritical.
Just realize that it is possible for temperatures to exceed Tmax briefly if operating under heavy load and that Tcritical is not a mere 1° above Tmax.
Edited by britechguy, 19 June 2018 - 05:51 PM.
Brian AKA Bri the Tech Guy (website in my user profile) - Windows 10 Home, 64-Bit, Version 1803, Build 17134
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