F5F Stay Refreshed Hardware Desktop The laptop's CPU heat is significantly greater than the GPU's temperature.

The laptop's CPU heat is significantly greater than the GPU's temperature.

The laptop's CPU heat is significantly greater than the GPU's temperature.

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Crazyglo
Member
61
05-29-2021, 12:07 AM
#1
I possess an Asus ROG Zephyrus G15 (GA503RM) with a Ryzen 7 6800HS and an RTX 3060 Mobile GPU. When under stress, the CPU temperature rises rapidly exceeding 90°C, while the GPU stays in the 60-70°C range. You’re looking for possible reasons behind this behavior using HWiNFO64. After opening the laptop and cleaning dust from fans and heatsinks, you blocked the fans and everything worked fine. The attached images show a light CPU workload. Temperatures were comparable on both components during the same task.
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Crazyglo
05-29-2021, 12:07 AM #1

I possess an Asus ROG Zephyrus G15 (GA503RM) with a Ryzen 7 6800HS and an RTX 3060 Mobile GPU. When under stress, the CPU temperature rises rapidly exceeding 90°C, while the GPU stays in the 60-70°C range. You’re looking for possible reasons behind this behavior using HWiNFO64. After opening the laptop and cleaning dust from fans and heatsinks, you blocked the fans and everything worked fine. The attached images show a light CPU workload. Temperatures were comparable on both components during the same task.

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jodo_2CH3
Junior Member
39
05-29-2021, 03:32 AM
#2
It seems to perform better with enhanced GPU cooling or stricter power/temperature controls.
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jodo_2CH3
05-29-2021, 03:32 AM #2

It seems to perform better with enhanced GPU cooling or stricter power/temperature controls.

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MrScooter2
Member
198
06-01-2021, 05:00 AM
#3
A few points to mention. The GPU runs at just 3% usage in this photo—idle, not working hard. The 6800HS is a 35W TDP part with a 42W power draw, which makes sense considering laptop performance.
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MrScooter2
06-01-2021, 05:00 AM #3

A few points to mention. The GPU runs at just 3% usage in this photo—idle, not working hard. The 6800HS is a 35W TDP part with a 42W power draw, which makes sense considering laptop performance.

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Doc1928
Member
55
06-01-2021, 01:06 PM
#4
The GPU chip is probably much bigger than the CPU, making it simpler to manage its heat. Looking at the internal images I captured (though not certain about the exact model), there are numerous heatpipes connecting both the CPU and GPU to exhaust fans. This setup would benefit the GPU more significantly than the CPU.
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Doc1928
06-01-2021, 01:06 PM #4

The GPU chip is probably much bigger than the CPU, making it simpler to manage its heat. Looking at the internal images I captured (though not certain about the exact model), there are numerous heatpipes connecting both the CPU and GPU to exhaust fans. This setup would benefit the GPU more significantly than the CPU.

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MrLulucas
Member
62
06-01-2021, 02:14 PM
#5
Yes, their temperatures would gradually match due to shared components.
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MrLulucas
06-01-2021, 02:14 PM #5

Yes, their temperatures would gradually match due to shared components.

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Abbys123
Junior Member
13
06-01-2021, 06:03 PM
#6
The heat pipes will operate at a significantly cooler temperature compared to the sensors inside the dies. This difference becomes clear in devices like water coolers, where the water reaches around 40°C while the CPU stays near 90°C.
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Abbys123
06-01-2021, 06:03 PM #6

The heat pipes will operate at a significantly cooler temperature compared to the sensors inside the dies. This difference becomes clear in devices like water coolers, where the water reaches around 40°C while the CPU stays near 90°C.