I am confused! can a 1080ti card run 1080p at 144Hz?

djmorgan

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Jun 16, 2017
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People say 1080p = 1920 x 1080!
However using my GTX 1080ti card from nVidia using 1080p means I can only use 60Hz to me 144hz 24" Monitor.

If on the other hand I select a straight PC 1920 x 1080 then I can use 120Hz to my dual monitors.
So my question is why 1080p/i is only 60Hz and why would I use that to a 144Hz PC Monitor?
 
What video output/input ports are you using in the 1080ti and your 24" monitor? DisplayPort? HDMI? DVI-D?

If DVI-D, are you using a single-link (does not support 144Hz on 1080p) or a dual-link cable (supports 144Hz on 1080p)?
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What is you monitor (brand/model)?
 

djmorgan

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Jun 16, 2017
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HDMI 2.0 to 2 monitors, because dual monitors max Hz is 120Hz (nVidia) MSI 1080ti only has 1 DVI 2 x DP and 2 X HDMI

A Kogan badged Benq build 24" LED 144Hz Gaming Monitor KALED24144A

My real issue is that people keep saying 1080p can run at 120/144hz I don't believe this is correct

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Screen Diagonal 61.0cm (24.0”)
Resolution 1920 x 1080
Brightness (typ.) 250 cd/m2
Contrast ratio 1000:1
Aspect ratio 16:9
Display colour 16.7M
Input connectors D-Sub, DVI, HDMI, Audio
Speaker output 2 x 2W
Power supply Adaptor (Input: AC100-240V 50/60Hz
Output: DC12V 3.33A)
Dimensions (H x W x D) 416 x 570 x 185mm
Wall mount hole pattern 100 x 100
 
Check the last page of your monitor's manual here: https://www.manualslib.com/manual/920469/Kogan-Kaled24144a.html?page=9#manual

It states:

1920 x 1080 @ 60Hz ---> VGA: Yes | DVI: Yes | HDMI: Yes
1920 x 1080 @ 100Hz ---> VGA: Yes | DVI: Yes | HDMI: Yes
1920 x 1080 @ 120Hz ---> VGA: Yes | DVI: Yes | HDMI: Yes
1920 x 1080 @ 144Hz ---> VGA: - | DVI: Yes | HDMI: -


This means your monitor if plugged using a VGA or HDMI, can only support 1080p @ 120Hz max. Since you are using an HDMI cable, then, you can only reach 120Hz max.

To enable 144Hz on 1080p, you need to follow the above manual of your monitor and use the DVI port. You also need a DVI Dual Link cable (such as the photo I posted in my first reply) for the 144Hz refresh rate to work (single-link cable will not work).

Now, since you are using 2 monitors, you can use 2 separate DisplayPort-to-DVI-D Dual Link adapter cables such as this: https://www.newegg.com/Product/Product.aspx?Item=N82E16812400507&cm_re=Display_Port_to_DVI-D-_-12-400-507-_-Product . Connect the DisplayPort ends to your GTX 1080ti, and the DVI-D Dual Link ends to your KALED24144A.
 

djmorgan

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Jun 16, 2017
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Thanks what you are saying is that until I use DP to Dual link DVI I will not see 1080p 1920 x 1080 and then the refresh rate 120Hz!

Only 1080p 1920 x 1080 and then the refresh rate 59Hz!

Personally I can see no advantage in running 1080p to a 24" monitor in lieu of 120Hz

Given that 1080p is destined for HDTV use it explains why it is only 60Hz as that is the normal refresh rate of a TV screen.

But by common misuse it seems people take 1080p as a high refresh rate!
 
That's why you shouldn't use the HDMI for your specific situation. Just use the DP/DVI-D ports to resolve the "Ultra HD, HD, SD @ 59Hz" issue as it detects HDMI as HDMI-HDTV (TV refresh rate). https://www.reddit.com/r/nvidia/comments/306w10/hd_vs_pc_resolutions/
 

djmorgan

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Jun 16, 2017
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Thanks but still makes no sense! if 1080p is 1920 x 1080 (FHD) as people make out then my PC connection as shown above is running at 120Hz as detailed in all the fps

And I just carried out a little test running Witcher 3, GRW, SWG3 all at 1920 x 1080 one pass as 1080p & 60Hz, then one pass as 1920 x 1080 & 120Hz

I took images at the same locations using Ansel and compared them, the only game showing a very marginal slant towards 1080p was GRW, so as far as I'm concerned if ever I wanted to run at 1080p I'd be happy &60Hz as in all cases the fps was well over 60FPS

Happy to read your or anybody elses comments.