Trying to understand how Motherboard work without dedicated GPU

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UncleBread

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Jun 26, 2015
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1. With a monitor that run with a 144hz refresh rate, if I want to make use of it I would require a motherboard that has a dual link DVI-D or a displayport slot right?

2. For a motherboard such as ASUS E3 PRO GAMING V5, it must have a dedicated GPU or it will not be able to display anything on the screen right? if the answer is no, please let me know where the cable is supposed to go.

3. Would ASUS H170 PRO GAMING be able to work with Intel Core i7 6700K to display a monitor at 144fps without a GPU?
 
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That is a hard question since.. seemingly no one mentions that and I am not totally sure either.
Best bet seems to be to google for GPU and 144hz and to read the results.

Bandwidth wise, you would need either or DP1.2 or Dual link DVI-D interface for it. (144Hz)
I am pretty sure more recent 900 and 1000 series from nvidia and RX from AMD support higher refresh rates though.

In conclusion, unless they list maximum refresh rates at 60hz(like intel does), the card should support anything that the monitor supports.
If the card CAN reach that FPS, is completely different matter though and for that reason, pretty much none of the integrated GPU's support more than the standard 60Hz.

why?
because 120Hz needs twice as much power to keep up...
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Jasjar

Jasjar

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Nov 24, 2015
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An integrated GPU is nowhere near powerful enough, you will get 60fps not 144. To get 144fps you need a powerful dedicated GPU. Without a dedicated GPU you will get no display on that mobo. The cable will have to be plugged into the dedicated GPU. As for 3, you will not need a dedicated GPU, but it will only get 60 fps.
 
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UncleBread

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Jun 26, 2015
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I would like to note that I am not talking about gaming here, just for normal web browsing. As such, I am quite taken aback that a powerful dedicated GPU would be required for even such a task. May I ask which level of GPU horsepower is required to display 144fps on the monitor for normal web browsing task.
 
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little_me

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May 9, 2015
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do not confuse Hz and fps, they are not same thing.
Hz is basically how many times the display will refresh/redraw the contents on the screen each second.
fps is basically how many times computer sends updated frame to be displayed, each second.

if display wont get a new frame to display, it will just show the last one again.
That said, Jasjar is correct, the integrated GPU on processor will support only up to 60Hz refresh speed.
http://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz

The decision to not support higher refresh speed is most likely that the GPU cannot handle higher load and if it cannot do that, it will give no benefit.
That said, I am also 99% sure that for "normal web browsing task" 144Hz monitor is overkill and gives no real benefit over normal 60Hz one.

edit: if you really want to go for 144Hz then you might need something like nvidia 780 or 960 or better. A massive jump in power draw and... benefit for webbrowsing? none.
 
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UncleBread

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Jun 26, 2015
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Didn't want to create another post at GPU section so I'll ask here instead.

How do you find out if a dedicated GPU or an integrated GPU will be able to display at a certain refresh rate, such as 144hz?

From your example, with a DisplayPort, the maximum resolution is 4096x2304@60Hz.

Trying to understand how these numbers mean, I went to look at a current high end dedicated GPU, namely the GeForce® GTX 1080 Xtreme Gaming Premium Pack 8G , and it state its Digital Max Resolution as 7680x4320@60Hz.

So how does one find out if a certain GPU, integrated or dedicated, will be able to support a certain refresh rate?
 
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little_me

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That is a hard question since.. seemingly no one mentions that and I am not totally sure either.
Best bet seems to be to google for GPU and 144hz and to read the results.

Bandwidth wise, you would need either or DP1.2 or Dual link DVI-D interface for it. (144Hz)
I am pretty sure more recent 900 and 1000 series from nvidia and RX from AMD support higher refresh rates though.

In conclusion, unless they list maximum refresh rates at 60hz(like intel does), the card should support anything that the monitor supports.
If the card CAN reach that FPS, is completely different matter though and for that reason, pretty much none of the integrated GPU's support more than the standard 60Hz.

why?
because 120Hz needs twice as much power to keep up, they are trying to SAVE power.
because on desktop usage, where GPU power is not really needed, anything above 60hz is 99% of the time useless.
because in games, if they are at all complicated, said integrated GPU cannot even reach 60FPS, making anything over that pointless.


Going back to original post and trying to understand why you would want to run 144hz on integrated GPU, I can only think that you already have 144Hz monitor.
You don't HAVE to run that at 144Hz, it can run just as well with lower refresh rate like 60Hz, for desktop usage, that is just fine.
 
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