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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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Fox2232
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#5185787 Posted on: 11/09/2015 01:02 PM
Considering average PC user/gamer has it running quite a lot on idle (browsing, watching movie, listening music, ...), I would say this is not nice.
But I am not one to bash it since I am running CPU at permanent 4.5GHz, no power states, nothing to conserve energy. But it eats only 15W more on idle than having speedstep and down-clocking to 1.6GHz.
Considering average PC user/gamer has it running quite a lot on idle (browsing, watching movie, listening music, ...), I would say this is not nice.
But I am not one to bash it since I am running CPU at permanent 4.5GHz, no power states, nothing to conserve energy. But it eats only 15W more on idle than having speedstep and down-clocking to 1.6GHz.
HonoredShadow
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#5185789 Posted on: 11/09/2015 01:03 PM
Is that even worth doing Fox?
Is that even worth doing Fox?
SetsunaFZero
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#5185792 Posted on: 11/09/2015 01:12 PM
same here every refreshrate over 100Hz clocks my 980ti to 912Mhz. Monitor Benq XL2411Z
I reported this issue more then 3 months ago to nvidia but nobody gave a ****.
With or without G-Sync. If I switch to 2560x1440x144 my GTX 980Ti goes to 963 MHz idle clock. If I stay at 120 Hz it idles at 135 Mhz. Acer XB270HU monitor.
same here every refreshrate over 100Hz clocks my 980ti to 912Mhz. Monitor Benq XL2411Z
I reported this issue more then 3 months ago to nvidia but nobody gave a ****.
Fox2232
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#5185795 Posted on: 11/09/2015 01:14 PM
When I had 1st i7 with base clock 1.83GHz and turbo 3.2GHz, it did stutter badly based on load as it clocked down and up very often.
With i5 and speedstep I had basically 3 frequencies. Base 1.6GHz (idle), 3.3GHz (standard) and 4.5GHz (turbo). Very aggressive turbo was causing minor stutter, noticeable even on 120Hz.
But locking all 4 cores to 4.5GHz removed it.
So, 15W is small price to pay for removal of CPU clock variation.
Is that even worth doing Fox?
When I had 1st i7 with base clock 1.83GHz and turbo 3.2GHz, it did stutter badly based on load as it clocked down and up very often.
With i5 and speedstep I had basically 3 frequencies. Base 1.6GHz (idle), 3.3GHz (standard) and 4.5GHz (turbo). Very aggressive turbo was causing minor stutter, noticeable even on 120Hz.
But locking all 4 cores to 4.5GHz removed it.
So, 15W is small price to pay for removal of CPU clock variation.
southamptonfc
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#5185796 Posted on: 11/09/2015 01:14 PM
Wow. Mine runs at over 800mhz at the desktop. I just assumed it was normal, I never knew it was burning so much power!
I am running 2 monitors, 144hz Gsync and a 120hz secondary.
Wow. Mine runs at over 800mhz at the desktop. I just assumed it was normal, I never knew it was burning so much power!
I am running 2 monitors, 144hz Gsync and a 120hz secondary.
fantaskarsef
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#5185798 Posted on: 11/09/2015 01:15 PM
I wonder if people will eventually realise that we used to have 100W light bulbs around just a few years ago. Two of those in your apartment / house, and you are where your PC is.
Or if you compare how increadibly much your idle PC uses in power, while some people's air condition is working all it got to get your room to a low temperature in summer... people are sometimes getting out of track just because they could save 100W with the PC yet blowing out a couple of hundreds for other comfort.
I wonder if people will eventually realise that we used to have 100W light bulbs around just a few years ago. Two of those in your apartment / house, and you are where your PC is.
Or if you compare how increadibly much your idle PC uses in power, while some people's air condition is working all it got to get your room to a low temperature in summer... people are sometimes getting out of track just because they could save 100W with the PC yet blowing out a couple of hundreds for other comfort.
Fox2232
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#5185803 Posted on: 11/09/2015 01:27 PM
I wonder if people will eventually realise that we used to have 100W light bulbs around just a few years ago. Two of those in your apartment / house, and you are where your PC is.
Or if you compare how increadibly much your idle PC uses in power, while some people's air condition is working all it got to get your room to a low temperature in summer... people are sometimes getting out of track just because they could save 100W with the PC yet blowing out a couple of hundreds for other comfort.
That's why I have LED light everywhere. If I keep everything lit, it still eats as much as one forgotten incandescent light bulb.
And I consider that energy saving from lights as way to feed other stuff.
But one should note that every watt GPU eats is turned into heat. For some people it may be problem.
100W idle difference can be problem for others too (for people running system 24/7). In case of 24/7 system it costs like 11 Euro/month.
I wonder if people will eventually realise that we used to have 100W light bulbs around just a few years ago. Two of those in your apartment / house, and you are where your PC is.
Or if you compare how increadibly much your idle PC uses in power, while some people's air condition is working all it got to get your room to a low temperature in summer... people are sometimes getting out of track just because they could save 100W with the PC yet blowing out a couple of hundreds for other comfort.
That's why I have LED light everywhere. If I keep everything lit, it still eats as much as one forgotten incandescent light bulb.
And I consider that energy saving from lights as way to feed other stuff.
But one should note that every watt GPU eats is turned into heat. For some people it may be problem.
100W idle difference can be problem for others too (for people running system 24/7). In case of 24/7 system it costs like 11 Euro/month.
crashburn162
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#5185818 Posted on: 11/09/2015 01:58 PM
Yep same here ASUS PG278Q Swift if it's idle only first card stays at 823mhz the second is at 135mhz. Although if the monitor is off it goes down to 135mhz. Yep good thing someone caught it this will save a lot of money.
Yep same here ASUS PG278Q Swift if it's idle only first card stays at 823mhz the second is at 135mhz. Although if the monitor is off it goes down to 135mhz. Yep good thing someone caught it this will save a lot of money.
Juliuszek
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#5185825 Posted on: 11/09/2015 02:10 PM
I hope they will not brake the graphics card... I just need those components to operate properly, I am aware they consume power. Since I assume we are talking about few Watts - I can have 2 beers per year less - no problem.
I hope they will not brake the graphics card... I just need those components to operate properly, I am aware they consume power. Since I assume we are talking about few Watts - I can have 2 beers per year less - no problem.
cryohellinc
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#5185826 Posted on: 11/09/2015 02:10 PM
Thank you guys for this tip. My IDLE temperatures straight away dropped from 43c to 34c once I have switched from 144hz to 120hz. This is amazing. However it has to be fixed.
Thank you guys for this tip. My IDLE temperatures straight away dropped from 43c to 34c once I have switched from 144hz to 120hz. This is amazing. However it has to be fixed.
zipper
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#5185828 Posted on: 11/09/2015 02:18 PM
Nothing new - years back Nvidia drivers did the same when connecting ordinary HDMI external screen to my laptop even when laptop screen was switched off.
Nothing new - years back Nvidia drivers did the same when connecting ordinary HDMI external screen to my laptop even when laptop screen was switched off.
Turanis
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#5185829 Posted on: 11/09/2015 02:19 PM
This story was covered here and they discover the Radeon R9 Fury did not have this problem:
http://www.pcper.com/news/Graphics-Cards/Testing-GPU-Power-Draw-Increased-Refresh-Rates-using-ASUS-PG279Q
"The AMD Fury does not demonstrate the same phenomenon that the GTX 980 Ti does when running at high refresh rates. The Fiji GPU runs at the same static 300MHz clock rate at 60Hz, 120Hz and 144Hz and the power draw on the system only inches up by 2 watts or so."
This story was covered here and they discover the Radeon R9 Fury did not have this problem:
http://www.pcper.com/news/Graphics-Cards/Testing-GPU-Power-Draw-Increased-Refresh-Rates-using-ASUS-PG279Q
"The AMD Fury does not demonstrate the same phenomenon that the GTX 980 Ti does when running at high refresh rates. The Fiji GPU runs at the same static 300MHz clock rate at 60Hz, 120Hz and 144Hz and the power draw on the system only inches up by 2 watts or so."
fantaskarsef
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#5185854 Posted on: 11/09/2015 03:00 PM
That's why I have LED light everywhere. If I keep everything lit, it still eats as much as one forgotten incandescent light bulb.
And I consider that energy saving from lights as way to feed other stuff.
But one should note that every watt GPU eats is turned into heat. For some people it may be problem.
100W idle difference can be problem for others too (for people running system 24/7). In case of 24/7 system it costs like 11 Euro/month.
I don't know about you guys, but I still feel this is not the topmost issue we have, that's what I'm trying to say.
It is an issue, I myself noticed my first 980 running at 900+MHz even while browsing, as well as the vram at the highest frequency.
But then again I have an expansive rig, and I am aware that running it consumes more energy than a rig for browsing, emails and such things, that's why to me personally it is not on my wishlist's top thing I want nvidia to fix, subjectively.
Also, there has been the word that you could change to 120Hz and save the energy, only that I am not aware if it works to turn down the max refresh rate only on desktop.
That's why I have LED light everywhere. If I keep everything lit, it still eats as much as one forgotten incandescent light bulb.
And I consider that energy saving from lights as way to feed other stuff.
But one should note that every watt GPU eats is turned into heat. For some people it may be problem.
100W idle difference can be problem for others too (for people running system 24/7). In case of 24/7 system it costs like 11 Euro/month.
I don't know about you guys, but I still feel this is not the topmost issue we have, that's what I'm trying to say.
It is an issue, I myself noticed my first 980 running at 900+MHz even while browsing, as well as the vram at the highest frequency.
But then again I have an expansive rig, and I am aware that running it consumes more energy than a rig for browsing, emails and such things, that's why to me personally it is not on my wishlist's top thing I want nvidia to fix, subjectively.
Also, there has been the word that you could change to 120Hz and save the energy, only that I am not aware if it works to turn down the max refresh rate only on desktop.
SSD_PRO
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#5185874 Posted on: 11/09/2015 03:26 PM
Shocking story... displaying higher resolutions at higher refresh rates consumes more power. I don't think anyone wants a "fix" to this; if they determined product Y needs X to produce acceptable visual display I don't want them to try .5(x) resulting in subpar visual display. I sense some tearing coming to high refresh dislays at idle clocks. They might patch current cards at the expense of quality but the only real "fix" will be engineering with this issue being considered - i.e. the next gen cards.
Shocking story... displaying higher resolutions at higher refresh rates consumes more power. I don't think anyone wants a "fix" to this; if they determined product Y needs X to produce acceptable visual display I don't want them to try .5(x) resulting in subpar visual display. I sense some tearing coming to high refresh dislays at idle clocks. They might patch current cards at the expense of quality but the only real "fix" will be engineering with this issue being considered - i.e. the next gen cards.
Click here to post a comment for this news story on the message forum.
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With or without G-Sync. If I switch to 2560x1440x144 my GTX 980Ti goes to 963 MHz idle clock. If I stay at 120 Hz it idles at 135 Mhz. Acer XB270HU monitor.