Are there graphics cards that output 144hz *via HDMI* ?

[evanya84]

I have a monitor, ViewSonic VX2758-C-MH, which specifically only outputs 144hz via HDMI. (Yes, in case you don't know, HDMI is capable of 240hz; it's just uncommon). I'm building a PC and need a gfx card that will power my 144hz monitor ***via HDMI*** but I'm having trouble finding out whether the cards will do this. I can find cards that *have* HDMI ports, yes, but how do I know that they will output @ 144hz? Like, does each port on a graphics card support the max refresh rate, or only certain ones?

 

[Barty1884]

Any modern GPU should be capable of 144Hz over HDMI 2.0 (so 900 series and up from Nvidia, 400 series and newer from AMD).

Typically, the HDMI 144Hz limitation is not on the GPU end, but on the implementation of the monitor.
Provided your monitor can do 144Hz over HDMI2.0 (just *being* 2.0 does not guarantee it, unfortunately), then the GPU shouldn't matter - assuming it's relatively new.

A lot of monitors will have DP and HDMI - when reading specs, you'll typically find the implementation of HDMI is 1.4. 1.4 also *can* do 144Hz, but if the monitor uses HDMI1.4, it's almost guaranteed it's not going to allow 144Hz via HDMI.


What monitor do you have, specifically? If possible to use, DisplayPort has been the 'standard' for higher refresh rates for a while now....

 

[ChumP]

If your monitor is a 1080p 144 Hz panel, this 1070ti will be powerful enough to hold 144 fps in most games at that resolution + this one has a HDMI port.

PCPartPicker part list / Price breakdown by merchant

Video Card: Gigabyte - GeForce GTX 1070 Ti 8 GB WINDFORCE Video Card ($359.99 @ Newegg)
Total: $359.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-11-13 13:03 EST-0500

 

[evanya84]

Any modern GPU should be capable of 144Hz over HDMI 2.0 (so 900 series and up from Nvidia, 400 series and newer from AMD).

Typically, the HDMI 144Hz limitation is not on the GPU end, but on the implementation of the monitor.
Provided your monitor can do 144Hz over HDMI2.0 (just *being* 2.0 does not guarantee it, unfortunately), then the GPU shouldn't matter - assuming it's relatively new.

A lot of monitors will have DP and HDMI - when reading specs, you'll typically find the implementation of HDMI is 1.4. 1.4 also *can* do 144Hz, but if the monitor uses HDMI1.4, it's almost guaranteed it's not going to allow 144Hz via HDMI.


What monitor do you have, specifically? If possible to use, DisplayPort has been the 'standard' for higher refresh rates for a while now....

I have a ViewSonic VX2758-C-MH, and it specifically states "144Hz refresh rate only available through HDMI." The only ports it has are: HDMI 2.0, 1.4, and VGA. Obviously VGA doesn't go to 144hz, so yeah. Definitely HDMI.

So you're saying it shouldn't be a problem then?

(I currently have a really small and old PC running on Intel HD Graphics 4000, and I can't get anything over 60hz with this monitor. That could be either because the GPU isn't powerful enough, and/or my PC's HDMI port is too old. I wonder which?)

 

[Eximo]

Can't think of a GPU recently released that doesn't offer an HDMI port. A few high end cards that only offered mini-DP.

Anything with HDMI 1.4 should be enough for 1080p at 144hz.

2560x1440 @ 144hz requires HDMI 2.0 at a minimum, but it only supports 4:2:0 bit color mapping. HDMI 2.1 is quite new, not seen any common GPUs with it, nor any monitors or displays.

 

[evanya84]

If your monitor is a 1080p 144 Hz panel, this 1070ti will be powerful enough to hold 144 fps in most games at that resolution + this one has a HDMI port.

PCPartPicker part list / Price breakdown by merchant

Video Card: Gigabyte - GeForce GTX 1070 Ti 8 GB WINDFORCE Video Card ($359.99 @ Newegg)
Total: $359.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-11-13 13:03 EST-0500

Great, thanks ... I know that most graphics cards will have an HDMI port, but I'm just wondering whether the high refresh rates are reserved for DisplayPort or DVI. Do *all* ports on a graphics card support the highest refresh rates the card can push out?

 

[Barty1884]

I have a ViewSonic VX2758-C-MH, and it specifically states "144Hz refresh rate only available through HDMI." The only ports it has are: HDMI 2.0, 1.4, and VGA. Obviously VGA doesn't go to 144hz, so yeah. Definitely HDMI.

So you're saying it shouldn't be a problem then?

(I currently have a really small and old PC running on Intel HD Graphics 4000, and I can't get anything over 60hz with this monitor. That could be either because the GPU isn't powerful enough, and/or my PC's HDMI port is too old. I wonder which?)

Then 2.0 port would drive 144Hz without issue - as I mentioned, the 1.4 port could theoretically do it too, but that depends on the implementation.

The fact you're capped to 60Hz is very likely a limitation of the Hd4000 &/or the implementation on your motherboard.

Great, thanks ... I know that most graphics cards will have an HDMI port, but I'm just wondering whether the high refresh rates are reserved for DisplayPort or DVI. Do *all* ports on a graphics card support the highest refresh rates the card can push out?

Within reason. For 1080p 144Hz, it won't matter.
HDMI (2.0) can do 4K 60Hz whereas:
DisplayPort 1.3 can do up to 4K 120Hz, 5K 30Hz and DP1.4 can do 4K 240Hz and 5K 60Hz IIRC (not 100% sure whether 1.4 is available on cards yet).

 

[evanya84]

I have a ViewSonic VX2758-C-MH, and it specifically states "144Hz refresh rate only available through HDMI." The only ports it has are: HDMI 2.0, 1.4, and VGA. Obviously VGA doesn't go to 144hz, so yeah. Definitely HDMI.

So you're saying it shouldn't be a problem then?

(I currently have a really small and old PC running on Intel HD Graphics 4000, and I can't get anything over 60hz with this monitor. That could be either because the GPU isn't powerful enough, and/or my PC's HDMI port is too old. I wonder which?)

Then 2.0 port would drive 144Hz without issue - as I mentioned, the 1.4 port could theoretically do it too, but that depends on the implementation.

The fact you're capped to 60Hz is very likely a limitation of the Hd4000 &/or the implementation on your motherboard.

Great, thanks ... I know that most graphics cards will have an HDMI port, but I'm just wondering whether the high refresh rates are reserved for DisplayPort or DVI. Do *all* ports on a graphics card support the highest refresh rates the card can push out?

Within reason. For 1080p 144Hz, it won't matter.
HDMI (2.0) can do 4K 60Hz whereas:
DisplayPort 1.3 can do up to 4K 120Hz, 5K 30Hz and DP1.4 can do 4K 240Hz and 5K 60Hz IIRC (not 100% sure whether 1.4 is available on cards yet).

Ok, great, thanks. So: "900 series and up from Nvidia, 400 series and newer from AMD" ... got it!

 

[spdragoo]

Theoretically, yes. That 1070TI's specs are here (https://www.gigabyte.com/Graphics-Card/GV-N107TWF2-8GD#sp), & since that matches up with the HDMI specifications (https://en.wikipedia.org/wiki/HDMI#Refresh_frequency_limits_for_standard_video) you should be fine.

 

[evanya84]

Theoretically, yes. That 1070TI's specs are here (https://www.gigabyte.com/Graphics-Card/GV-N107TWF2-8GD#sp), & since that matches up with the HDMI specifications (https://en.wikipedia.org/wiki/HDMI#Refresh_frequency_limits_for_standard_video) you should be fine.

awesome, so when looking at the specs for the gfx card, "HDMI-2.0b*1 (Max Resolution: 4096x2160 @60 Hz)" we just assume(??) that it can go 144hz @ 1920x1080?

 

[spdragoo]

Yes, that's a fair assumption. Considering that the higher resolution is driving over 4 times as many pixels to the screen, but is only refreshing 2.4 times slower, it will have no trouble.

 

[Barty1884]

Yes - any card with those specs can do 1080p 144Hz no problem.

When it comes to connecting to your monitor though, ensure you're connecting to the 2.0 port on the display itself (they should be labelled, or check the manual).
Given they have implemented both, I'd fully expect the 1.4 HDMi port will not be capable.