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Sensor "GPU Power (%)" reacts to RGB Lighting and Fan Speed #388

@NasenGolem7442

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@NasenGolem7442

My System:

  • OS: Windows 11
  • GPU: GIGABYTE GeForce RTX 5080 GAMING OC 16G (GV-N5080GAMING OC-16GD)
  • Motherboard: ASUS ROG STRIX B650E-F GAMING WIFI

What I tested:
I enabled GPU Power (W), GPU Power (%), and GPU Board Power (%) in the overlay. Then, I opened the RivaTuner Overlay Editor to inspect the provided sensor values while the GPU was under very low load (RTSS app → blue Setup button → Plugins tab → double-click OverlayEditor.dll).

Next, I opened the Gigabyte Control Center to configure fan speed and RGB lighting. First, I reduced power usage to a minimum by disabling the lighting and setting the fan speed to 0 RPM (Auto Fan Control with fan stop below 50 °C). As expected, “Power” and “Board Power” were almost equal, at around 5–6%.

Then, I enabled maximum fan speed (3000 RPM), and GPU Power (W) increased from roughly 21.5 W to 28.5 W. Additionally, both percentage values increased to 7–8%.

Measuring the impact of RGB lighting was more difficult, since its effect on power usage was rather small. However, I think (though I’m not entirely sure) that both percentage values reacted equally to the white lighting as well.


Maybe this is the intended and expected behavior, but when I see a distinction between “GPU Power” and “GPU Board Power,” I would expect only “GPU Power” to include fan and lighting power consumption.

I was already skeptical about the distinction between “Board Power” and “Power” before I started testing. As far as I know (which is actually not that much, so I could also just stfu), NVIDIA doesn’t provide clear information about the exact meaning of their sensors. So maybe this is simply a case of incorrect labeling.

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