Does this 7850 card support 60Hz at 3440x1440?

[SY85]

I recently bought a 35" widescreen monitor to run off my iMac as it's backlight had failed. It works fine at 3440x1440 @60Hz vi display port. However I also have it hooked up to my PC via HDMI.

Running the monitor from the PC via HDMi I can only get 30Hz at 3440x1440. If I want 60Hz I have to drop to 1920x1080.

I am using a HDMI 1.4 cable so I know that supports high res and refresh rate so I am thinking the limitation must be the graphics card? It is old I know but I did't think it would be this limited? I cannot find out the refresh rates it supports at different resolutions so thought someone here may know?

 

[pigeonguyuk]

https://subscriptions.amd.com/newsl...ies graphics messaging brief v2 29feb2012.pdf

Ultrawide support didn't really exist for single displays in 2012 when them GPU's came out

 

[LuckyBenski]

If it does, it's likely it can only do it via DisplayPort.

That said, I've been able to up the framerate using better DP cables before. So try and get a good one too.

 

[pp111]

The 7850 does not support 3440x1440 at 60Hz. The maximum it can do at 60Hz is 2560x1440.

 

[james.miller]

hdmi 1.1/1.2 doesnt have the bandwidth for 3440x1440 at 60hz. 50hz should work though.

 

[Aretak]

Yeah, you'd have to use DisplayPort. I'm currently using a 7970 and it does 1440p/144Hz just fine over (mini) DisplayPort, but only 1440p/60Hz over HDMI, so wouldn't be enough bandwidth for ultrawide.

 

[Armageus]

IIRC GCN2 Cards (7790/260X/290X etc) were the first cards that supported the required displayport and hdmi versions - older cards than this would only drive 4K monitors at 30hz.


Edited to clarifiy

 

[Aretak]

IIRC GCN2 Cards (7790/260X/290X etc) were the first cards that supported the required displayport and hdmi versions - older cards than this would only drive 4K monitors at 30hz.

These first-gen cards have DisplayPort 1.2, so can actually do 4K/60 over that. You could just buy a cheap DP to HDMI adapter to hook it up to a HDMI port too.

 

[Armageus]

These first-gen cards have DisplayPort 1.2, so can actually do 4K/60 over that. You could just buy a cheap DP to HDMI adapter to hook it up to a HDMI port too.

Apologies yep - it was only HDMI that wouldn't do 4K/60 on the older cards.

 

[iBSOD]

get an active dp1.2 to hdmi 2.0 adapter

 

[OldKitMan]

FWIW and possibly unrelated but I had horrendous problems getting my 7870 to display 4k @ 60Hz on my monitor using DP. I would have to turn the monitor off and on multiple times before I got a picture, tried different cables and the problem persisted, got a cheap RX580 and the problem went away so possible the older GPU's may have some unexpected issues as well.

 

[Randomface74]

Didn't have enough vram anyway.