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According to Google that's around 10 C. I start getting a cold when it's 20 C if I have to sit in one place for too long, so how on earth can you survive at those low temperatures?

I live in an area that has gets down to -24 C during the winter.

Which is absurd considering our summers often get up to 39 C.
 
Normally, my cpu hovers at around 37-39 C with fans at around 2000 RPMs

When I play league of League of Legends at my current settings, cpu got up to 84 C and fans started to approach 3900 RPM...

Is 84 C bad for the laptop? Am I damaging it? the 750m starts to get noticeably loud and this is my first macbook pro ever.
 
2.6 / 16 / 1 tb / 750m

Ambient temp = 22.8 C

I ran the test 3 times. The fans started running much louder and faster around 55 - 60s into the test.

Geekbench Results:
Test 2
Test 3
Test 4
 

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2.3 / 16 / 1 tb ssd / 750m

Ambient temp = 22.8 C

Compared to 2.6, the fans didn't fire up much. I will run this test a couple more times.

Geekbench Results:
Test 1
Test 2
 

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That's interesting. Does that mean that the 2.6 is noticeably louder while performing the same tasks?
 
That's interesting. Does that mean that the 2.6 is noticeably louder while performing the same tasks?
So far, the fans were only loud when copying a large amount of files (e.g. 140 GB from Time Capsule), or when an app isn't responding (had issues with Mail).
 
Even though the fans on the 2.6GHz machine seem to run faster than on the 2.3 model?

EDIT:
... and since you have both models, how do they compare in terms of battery life?
 
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that's extremely high. i think its too much if its over 90. 95-100 really seems like it will wear down the graphics processor in the long run.



I assume this is related to no proper EFI windows drivers in bootcamp? the fans simply can appropriately cool the GPU in windows?

well the room was extremely warm, we where 13 friends crowded in a small room so everyones gaming desktops kept the room quite warm.

And the render i mentioned was during summer, using 100% CPU for 12 hours is probably a bit too much :)
 
Gaming always 79C. The fans adjust their rpm's to exactly hold 79C and not one C above.

But this is just for gaming, I haven't run Prime95 or so, because I consider this as a not usual load for the laptop.
 
15" rMBP 2.3 here.

Owners of same/similar, what are your default fan speeds? iStat Pro is showing left at around 2150, right at 2000. Is that normal? My previous macs have always had same left and right. I presume gpu is over on the left side?
 
You can use GeekBench 3 for stress testing:

Screen%20Shot%202013-11-06%20at%2017.27.10.png


Edit: sorry for the huge screenshot :D

My results: after 8 minutes of 64-bit stress testing the CPU doesn't get hotter than 43°C (room temperature: 24°C).
 
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You can use GeekBench 3 for stress testing:

Image

Edit: sorry for the huge screenshot :D

My results: after 8 minutes of 64-bit stress testing the CPU doesn't get hotter than 43°C (room temperature: 24°C).

Doesn't get hotter than 43c stressing via Geekbench3 64-bit? That is not possible. Something is wrong with your temperature utility.
 
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Doesn't get hotter than 43c stressing via Geekbench3 64-bit? That is not possible. Something is wrong with your temperature utility.

Tried again today, 10 minutes GeekBenck 3 stress test:

Screen%20Shot%202013-11-07%20at%2011.01.14.png


Screen%20Shot%202013-11-07%20at%2011.01.27.png


Left fan speed increases but the temperature stays really low. The machine is also just a little bit warm on the left side. No higher than 43°C.

Room temperature: 24°C, humidity 55%.
 
Here are the temps for my 2012 15" rMBP basically at idle, just Chrome and Word open (sorry in advance for the big image).

2012%20rMBP%20Temps.png
 
Tried again today, 10 minutes GeekBenck 3 stress test:

Image

Image

Left fan speed increases but the temperature stays really low. The machine is also just a little bit warm on the left side. No higher than 43°C.

Room temperature: 24°C, humidity 55%.

Download a free 14-day trial of iStat Menu, then report back. The CPU heatsink (shown in your SS) is DIFFERENT from the CPU Die (the actual cpu itself). Your temps are not real temps.

A good indication that the utility you are using is not telling the temps we are looking for, is the fact that we can see your Fan speed temps increasing (~5000 RPM). These Macbook's only increase fan RPM (from 2000 default) when temps reach above 90c. So, your temps are hitting above 90c. Your CPU heatsink is not. My cpu heatsink, when stressing, is ~50c, while my REAL cpu temps hit ~91c
 
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Download a free 14-day trial of iStat Menu, then report back. The CPU heatsink (shown in your SS) is DIFFERENT from the CPU Die (the actual cpu itself). Your temps are not real temps.

A good indication that the utility you are using is not telling the temps we are looking for, is the fact that we can see your Fan speed temps increasing (~5000 RPM). These Macbook's only increase fan RPM (from 2000 default) when temps reach above 90c. So, your temps are hitting above 90c. Your CPU heatsink is not. My cpu heatsink, when stressing, is ~50c, while my REAL cpu temps hit ~91c

Good point thanks, I didn't know I could get a more accurate reading.

Under load, CPU core temps keep varying between 68-69°C and 95-96°C.

Screen%20Shot%202013-11-07%20at%2017.09.07.png
 
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