Question V-Sync and Power Draw

[test_123]

I noticed a strange thing when I was reading TechPowerUp's review of the 4090. The power draw in gaming is 346W. Cool makes sense. Then, I noticed when V-Sync is enabled at 60Hz, the draw is 76W. Does this mean if I play at 4K max settings on something like Cyberpunk, I'll see a 270W difference when I disable V-Sync? Wouldn't maxing out the settings draw more power at a capped 60FPS vs low settings without V-Sync and running at 122FPS. Perhaps, I'm not understanding these benchmarks. Can someone please explain. Thank you.

 

[test_123]

https://www.techpowerup.com/review/nvidia-geforce-rtx-4090-founders-edition/39.html

Here are the benchmarks for reference.

 

[Gam3r01]

Different testing methods, but there is some merit to it.
First:
Gaming: Cyberpunk 2077 is running at 2560x1440 with Ultra settings
V-sync: In this test, we run Cyberpunk 2077 at 1920x1080, capped to 60 FPS.

So, they are running the game at different settings, which is done so to test the card in low power environments, not exactly to test power saving features.
As to your question, running V-sync on/off at 4k likely would not have nearly as big of an impact on power consumption as these tests.
When uncapped the card is going to run itself as hard as it wants, and will likely use any available power to do so.

 

[SkyNetRising]

Does this mean if I play at 4K max settings on something like Cyberpunk, I'll see a 270W difference when I disable V-Sync?
Wouldn't maxing out the settings draw more power at a capped 60FPS vs low settings without V-Sync and running at 122FPS.
Perhaps, I'm not understanding these benchmarks. Can someone please explain. Thank you.

Vsync limits fps.
Graphics card doesn't have to work so hard compared to, when fps are unlimited.

For example - if normally with vsync off, gpu works at full power and you get 400fps.
With vsync on you get only 60fps. Power draw is significantly less because of this.

If normally with vsync off you get like 65fps, then turning vsync on - and limit fps to 60fps,
this would not cause a significant power usage difference.

 

[test_123]

V-sync: In this test, we run Cyberpunk 2077 at 1920x1080, capped to 60 FPS.

Now, the benchmarks make perfect sense!!

If normally with vsync off you get like 65fps, then turning vsync on - and limit fps to 60fps,
this would not cause a significant power usage difference.

That's what I was thinking when I 1st read the benchmarks assuming they used same settings.