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AMD Ryzen Grasp, Aida64 and HWInfo64 temp studying not the identical

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Aug 29, 2005

No matter my web protocol reveals I suppose O.o

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  • #1
After i put my AMD Ryzen 9 3900X system collectively I can see that temp studying are actually completely different for the three packages I examined which is:

AMD Ryzen Grasp v2.0.21271 (The latest model I may discover)
Aida64 Engineer v6.00.5100
HWiNFO64 v6.10-3880

AMD Ryzen Grasp reads 83.1C because the lowest software program report whereas HWiNFO reads 84.8C and Aida64 is studying the most well liked at 87C that is roughly round 4C distinction.

I do not know which one to belief a 100% right here even I believe I must belief the AMD Ryzen Grasp as a result of it is developed by AMD and must be the one most accurated and in addition controls the temp restrict.


Lionheart, TheoneandonlyMrK and HD64G


Workers member
Oct 6, 2004


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  • #2
they measure at barely completely different occasions and should effectively measure completely different cores (they’re meant to indicate the temp from the most well liked core, at time of measuring… which might be as little as each 1ms)

Lionheart, biffzinker, TheLostSwede and a couple of others


Jul 18, 2016
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  • #3
ryzen grasp accomplished by amd must be your alternative


Jul 25, 2006

Nebraska, USA

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  • #4
Mussels stated:
they measure at barely completely different occasions and should effectively measure completely different cores


You will need to keep in mind the temperature of a processor can bounce from cool to over-heated in only a few clock cycles. And in that processor, there are over 4 billion cycles in only one second!

Measuring temps is NOT something high-tech. The sensors merely report a quantity that represents a thermal worth. These thermal values are broadly revealed by the sensor maker and accessible to the monitoring software program builders.

The software program simply takes that worth and converts it to a temperature based mostly on these revealed specs. If the CPU core is sitting at 50°C, for instance, at that particular cut-off date, then 50°C is 50°C regardless which program experiences it. So no magic or proprietary formulation or algorithms are required or used. So long as the monitoring program can accurately establish the sensor (not a troublesome activity), it can report 50°C.

Additionally, each monitoring program has completely different “sample rates”. That’s, the variety of occasions they pattern (or “look at” or “poll”) the sensor per second, minute, hour, and many others. It might be as soon as per second or as soon as each 5 seconds or one thing else. Core Temp, for instance, by default samples each 1000ms (1 second intervals). Rather a lot can occur in a single second.

Final, their pattern occasions will likely be completely different too. It is because it’s unimaginable so that you can begin every of these monitoring packages so their first samples are taken on the very same CPU clock cycle.

Another final thing – these sensors are very low-tech too. That’s, they’re NOT essentially the most exact measuring gadgets. To incorporate essentially the most correct accessible would improve prices. And that degree of precision is simply not wanted. For those who “need” that degree of precision to forestall crossing thermal security thresholds, you could have different, extra important points to take care of first – like higher case cooling.

It’s kinda like rest room scales. When it comes to your well being, it actually doesn’t matter it reads 162 while you actually weigh 160. What issues is that it reads 162 each time a 160 pound weight is placed on the scales. Its all about consistency first, accuracy second (so long as the accuracy is within the ball park).

Okay, I promise, that is the very last thing – sadly there are not any business requirements for sensor placement throughout the processor, sensor accuracy, and even sensor use. So one-on-one comparisons between 2 completely different CPUs (even throughout the similar model of CPU) is close to unimaginable exterior of knowledgeable precision measuring laboratory.

So IMO, your 4°C unfold is nothing to fret about. If one monitoring program stated 62.3°C, one other stated 65°C and one other stated 97.7°C, then I might dismiss the third.

PerfectWave stated:
ryzen grasp accomplished by amd must be your alternative

I do not agree. I’m NOT saying Ryzen Grasp is a nasty alternative. What I’m saying is there is no such thing as a cause to imagine it will be extra correct or constant, due to this fact I’m saying it is best to simply choose the monitoring program you want, and keep it up.




Mar 10, 2010

Manchester uk

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  • #5

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