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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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Anarion
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Senior Member
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#5186033 Posted on: 11/09/2015 06:27 PM
So?
4char
It works fine at 1080p. 1440p and 144hz is where the issue is
So?
4char
Toss3
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Senior Member
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Joined: 2010-03-25
#5186036 Posted on: 11/09/2015 06:30 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.
More like 6€€ (100W*24h*30days=72000WH = 72kWh, 72kWh(0,0456€/kWh+0,0311€/kWh)~5,50€)
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.
More like 6€€ (100W*24h*30days=72000WH = 72kWh, 72kWh(0,0456€/kWh+0,0311€/kWh)~5,50€)
vbetts
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#5186057 Posted on: 11/09/2015 06:50 PM
Personally I would not care about the power usage seeing that I have all power states turned off anyway, but this is not the case for everyone. I have seen many complaints on the Nvidia forms, but they now choose to do something about it after it's pretty much been an issue since launch?
Personally I would not care about the power usage seeing that I have all power states turned off anyway, but this is not the case for everyone. I have seen many complaints on the Nvidia forms, but they now choose to do something about it after it's pretty much been an issue since launch?
zimzoid
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#5186143 Posted on: 11/09/2015 08:23 PM
Not a problem for as mine is always set at 120hz can't really tell the difference between 120 and 144hz so 120 is fine
Not a problem for as mine is always set at 120hz can't really tell the difference between 120 and 144hz so 120 is fine
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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.
It works fine at 1080p. 1440p and 144hz is where the issue is