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Nvidia looking into problem high IDLE power usage vs high refreshrate
The IDLE power consumption of Nvidia graphics cards in combination with a GSYNC monitor with a high refresh-rate is much higher compared to regular monitors. Nvidia confirmed the problem and is working on a solution.
During testing of a Asus PG279Q Ryan Shrout from PC Perspective discovered this abnormal behaviour. The 27"-in GSYNC monitor at 165 Hz made his test system use much more power in Idle opposed to your regular PC at a 60Hz refresh-rate.
The power consumption differences in IDLE are massive, at 60 Hz the PC utilizes 74 Watts, yet at 165Hz his PC started using 201 Watts in IDLE, yes that's just displaying your idle Windows desktop.Once you look at the graphics card (in this case a GeForce GTX 980 Ti) the problem becomes abundantly clear, ay 60 Hz the card will have a baseclock of 135 MHz and with 120Hz or higher, the cards kicks in and remains at 885 MHz. The problem only seems to be focusing at GSYNC monitors. Disabling GSYNC does not change the power consumption at 144 Hz.
NVIDIA is looking into this and has found the problem. They will issue a fix with a driver future update.
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southamptonfc
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Posts: 2250
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#5185945 Posted on: 11/09/2015 04:50 PM
This just proves that Nvidia doesn't read it's own forums. This problem was reported awhile ago. Users were using the vBios tweaker to change the power states. Or setting their performance rates to be a lower refreshrate on the desktop.
I don't even know why those forums exist. They are completely useless in my experience.
This just proves that Nvidia doesn't read it's own forums. This problem was reported awhile ago. Users were using the vBios tweaker to change the power states. Or setting their performance rates to be a lower refreshrate on the desktop.
I don't even know why those forums exist. They are completely useless in my experience.
nhlkoho
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#5185959 Posted on: 11/09/2015 05:09 PM
Have you checked if you actually go back to 144Hz during gaming?
I turned down the refresh rate to 120Hz, but my XB270HU showed it to stick to 120Hz Gsync even if I turn on a game (BF4 for instance). I then switched back to 144Hz on desktop too to get what I bought my hardware for during playing. At least the monitor's OSD states it doesn't go up to 144Hz and sticks to 120Hz, as I don't have a high speed camera I can't really check
Yes mine changes properly when I change the setting in the control panel to use max refresh rate.
Have you checked if you actually go back to 144Hz during gaming?
I turned down the refresh rate to 120Hz, but my XB270HU showed it to stick to 120Hz Gsync even if I turn on a game (BF4 for instance). I then switched back to 144Hz on desktop too to get what I bought my hardware for during playing. At least the monitor's OSD states it doesn't go up to 144Hz and sticks to 120Hz, as I don't have a high speed camera I can't really check
Yes mine changes properly when I change the setting in the control panel to use max refresh rate.
Fox2232
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Posts: 11809
Joined: 2012-07-20
#5185960 Posted on: 11/09/2015 05:09 PM
That did happen to me altogether 4 times, long time ago. Every time solved by replugging DP cable.
Then I got lucky and DP connector/cable no longer created interference. Perfect experience since then.
AMD should do the same with the R9 Fury/X/Nano Display Corruption issue
That did happen to me altogether 4 times, long time ago. Every time solved by replugging DP cable.
Then I got lucky and DP connector/cable no longer created interference. Perfect experience since then.
Anarion
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Senior Member
Posts: 13605
Joined: 2005-08-13
#5186017 Posted on: 11/09/2015 06:16 PM
When I had R9 290 super bad power saving when using 75Hz was one of those things that "forced" me to go back to NVIDIA. Memory ran at full blast which made the card run hotter and even things like watching video made the GPU fan to speed up (it was noticeable, sound and temperature wise).
It's really annoying if power saving doesn't work properly when you use high(er) refresh rates.
When I had R9 290 super bad power saving when using 75Hz was one of those things that "forced" me to go back to NVIDIA. Memory ran at full blast which made the card run hotter and even things like watching video made the GPU fan to speed up (it was noticeable, sound and temperature wise).
It's really annoying if power saving doesn't work properly when you use high(er) refresh rates.
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I can confirm, that you're right. I'm running (as test) 60hz on desktop, browsing aso., and it still turn up to 144hz in games (dx9 and dx11 and OpenGL games). When shutting the game down it return to 60hz on desktop, chrome or whatever I'm doing.
I got this to work this way in Nvidia's control Panel. In "Change resolution" I set the resolution to 2560x1440 at 60hz. And in 3D admin setting I set "preferred refresh rate" to "highest possible". Then the games are running with 144hz and desktop, surf aso is running 60hz with Gsync ON.
NB: Maybe the names of the settings above is not the same as yours, as my Nvidia Control Panel is in Danish, and I translate just this to English, as I assume you don't read Danish