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CPU Temperature VS Core temperature

post #1 of 6
Thread Starter 
Hi all,
is there a kind person who can explain me the difference between CPU Temperature and Core Temperature?

I know that Core Temperature is referred to the single core but how is possible that I have 6 core to 90c and CPU temperature is 80c?

I use various software to see core/cpu temperature like real temp, core temp, aida, ai suite and all report the same temperature.

I tought that the CPU temperaure is an average temperature of the cores, but not, it isn't.
So, is CPU temperature a temperature that has a sense?

Asus suggest to not surpass 80c when in full load, is this temperature referred to the single core temp or to the CPU temp?

Thanks.
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post #2 of 6
CPU temps are never accurate because not located in hot spots, intel abandoned them for that reason. They can represent a diode in cpu or in socket but they are not calibrated hence not accurate and they can be all over the place.

Core temps are calibrated by intel at factory and represent hottest spots on die, and are the only temps that matter. Most just ignore cpu temps since it is never going to be accurate unless just by luck.
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by opt33 View Post

CPU temps are never accurate because not located in hot spots, intel abandoned them for that reason. They can represent a diode in cpu or in socket but they are not calibrated hence not accurate and they can be all over the place.

Core temps are calibrated by intel at factory and represent hottest spots on die, and are the only temps that matter. Most just ignore cpu temps since it is never going to be accurate unless just by luck.

thank you for the answer.
AiSuite reports CPU temperature, this let me know that when Asus talks about 80c, they talk about CPU temperature.
Is Asus ignorant on this matter? Why they are talking about CPU temperature when "this value" doesn't matter?
Why they insert this value in their OC software?

I will never understand some of the logic behing this computers.
When marketing meets computer scientist this is what happen.
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post #4 of 6
Quote:
Originally Posted by sblantipodi View Post

thank you for the answer.
AiSuite reports CPU temperature, this let me know that when Asus talks about 80c, they talk about CPU temperature.
Is Asus ignorant on this matter? Why they are talking about CPU temperature when "this value" doesn't matter?
Why they insert this value in their OC software?

I will never understand some of the logic behing this computers.
When marketing meets computer scientist this is what happen.


I think that the CPU temps are the CPU temps on the physical lid of the CPU, but it's not as noted something accurate that you should rely on. As for why? I have no idea. But I do know this, relying on the software that comes with the motherboard is usually a bad idea. Each of the motherboard makers has their own software - like Asus AI Suite, Gigabyte Easy Tune, MSI Command Center, etc. I recommend using the BIOS as much as possible to make changes and to avoid using most features. Sometimes there's some useful things like RAMDisk, but it's mostly not something to rely on and often buggy.

I would ignore the temperatures in AI Suite. Get a software like CoreTemp and use that for the different cores or RealTemp. Use those as that is the hottest temperature on each core. HWMonitor can also be useful.

Alarmingly, some motherboard makers might use this software in their automatic overclocking (which I recommend against using as they tend to be aggressive in their voltages).
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by CrazyElf View Post

I think that the CPU temps are the CPU temps on the physical lid of the CPU, but it's not as noted something accurate that you should rely on. As for why? I have no idea. But I do know this, relying on the software that comes with the motherboard is usually a bad idea. Each of the motherboard makers has their own software - like Asus AI Suite, Gigabyte Easy Tune, MSI Command Center, etc. I recommend using the BIOS as much as possible to make changes and to avoid using most features. Sometimes there's some useful things like RAMDisk, but it's mostly not something to rely on and often buggy.

I would ignore the temperatures in AI Suite. Get a software like CoreTemp and use that for the different cores or RealTemp. Use those as that is the hottest temperature on each core. HWMonitor can also be useful.

Alarmingly, some motherboard makers might use this software in their automatic overclocking (which I recommend against using as they tend to be aggressive in their voltages).

AiSuite reports the same CPU temperature I see in bios.
I would like to understand if the "asus suggested maximum 80c" is referred to CPU temperature or to core temperature because this two temp are widely different on my system.
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DeskStar
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by sblantipodi View Post

AiSuite reports the same CPU temperature I see in bios.
I would like to understand if the "asus suggested maximum 80c" is referred to CPU temperature or to core temperature because this two temp are widely different on my system.

bumping the question
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