Amd 450/460 Temperatures

fokmik

macrumors 601
Original poster
Oct 28, 2016
4,543
4,017
USA
So since is a major indicator for longevity of our MBP...how are your temperatures under stress for dGPU?
Say your dGPU model and max tmp
For me 450 here it didnt reach 80C it stood around 70-74C
 
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Qwe9203

macrumors member
Nov 18, 2014
73
7
There is already some failures in another thread. When does Apple learn they can't do dGPUs.
 

Heirborn391

macrumors newbie
Jul 11, 2008
26
1
During the Unigine Heaven & Valley benchmarks, my 460 peaked at 82C, then stabilized around 70-72C.
 

CasablancaDR

macrumors member
Nov 27, 2014
55
5
Paris, France
During the Unigine Heaven & Valley benchmarks, my 460 peaked at 82C, then stabilized around 70-72C.
i think below 80C is safe to say that its ok.
Below 90°C, the GPU is safe. 72°C stabilized in Unigine Heaven is very good news.

In comparaison, the 295x of my 5K iMac is almost all the time around 80°C and at full load can reach 105°C which is bad.
 

Queen6

macrumors G3
There is already some failures in another thread. When does Apple learn they can't do dGPUs.
The classic failure mechanism of the MBP`s dGPU is related to thermal shock, as Apple in general opts to run consumer grade components as close to their upper limit as possible. This in general takes several years to rise it`s head resulting in premature failure of the dGPU. As for the longevity of the 2016`s dGPU we will see in time. The only real early indicator is operating temperatures; if Apple`s 2016 design can keep the dGPU below 80C - 85C under load it will be a good indication that Apple is looking to improve reliability.

This case is more likely to related to a production error, one of the risks of being an early adopter; new hardware, new processes, new assembly technicians etc. one of the risks of being an early adopter with Apple.

Q-6
[doublepost=1479375583][/doublepost]
i think below 80C is safe to say that its ok.
This is a good number for consumer electronics, and hopefully a sign of Apple finally getting the mix right.

Q-6
 

Macintosh IIcx

macrumors 6502
Jul 3, 2014
440
421
Denmark
Below 90°C, the GPU is safe. 72°C stabilized in Unigine Heaven is very good news.

In comparaison, the 295x of my 5K iMac is almost all the time around 80°C and at full load can reach 105°C which is bad.
:eek::eek::eek:

I know the GPU is designed to survive 105°C, but that would just freak me out!
 

fokmik

macrumors 601
Original poster
Oct 28, 2016
4,543
4,017
USA
anyone else with 450 or 455 on this forum to check the temperatures ?
 

dotdotdot

macrumors 68020
Jan 23, 2005
2,381
34
My 460 built Feb 2017 reaches up to 86 degrees. I feel like my previous models never went above 82. It hovers around 79 after the 86 peak.
 
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