144hz monitor system power draw

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landdnl

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Oct 26, 2013
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Not sure whether this thread is better here or the display forum. Anyways, I'm seriously considering getting a 27" 1440p @144hz to pair with my GTX1070 card. I narrowed my choices to the 2 usual suspects, i.e. Asus and Acer. Does anyone know if the "clock speed increase" issue is resolved when going to 144hz(PG279Q w/980ti(135 Mhz at 60 to 120hz,885 Mhz at 144hz, or to put it in terms of system wattage increase at idle, 76 watts to 134 watts, jumping to 200 watts 30 seconds at a time)). It seems this is more of an Nvidia issue than AMD.
http://www.pcgamer.com/144hz-monitors-and-nvidia-gpus-draw-surprising-amounts-of-power/
 
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Eximo

Eximo

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May 27, 2010
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Well my 1080 doesn't seem to be idling at 800Mhz, but that could just be the effect of the GPU being fast enough to take care of it. Though I would have thought a 980Ti wouldn't have much trouble with 144hz at 2560x1440 either.

If power consumption is your primary concern you can just run your desktop at 60hz when you aren't gaming.
 
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landdnl

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Oct 26, 2013
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"The reason behind this can be found in the clock speed of the GPU, which sits at 135MHz on lower refresh rates, but jumps up to 885MHz when increased past 144Hz. It seems that the pixel clock and the GPU clock are connected but not asynchronous. So at 135MHz, there’s not enough to power anything past the 120Hz refresh rate. It is not currently known why the increased clock speed is so high. Nvidia is aware of the problem, but it doesn’t look like a fix will be coming any time soon."http://www.pcgamer.com/144hz-monitors-and-nvidia-gpus-draw-surprising-amounts-of-power/

 
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