I have a 2014 iMac with the R295x GPU. I run it with the 5k internal screen as well as a 4k ASUS screen. When I check the GPU 0 diode temperature it reports 99C at all times even if no applications are open and it's a fresh install of OS X. If I unplug the external 4k display the GPU 0 diode goes down to about 85C.
Are these high temperatures normal? I am worried because they seem absurdly high.
Are these high temperatures normal? I am worried because they seem absurdly high.