AMD HD Radeon 6800 - Which cables for 1440p?

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jzeldis1

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Oct 14, 2017
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I have a AMD HD Radeon 6800 graphics card and am running a dual monitor setup. I recently upgraded to two 1440p monitors, with HDMI and display port inputs. I purchased a display port cable and was able to connect one monitor in 1440p. For the other monitor, the Radeon 6800 has two DVI ports and an HDMI port. No matter hwat cable I try, I can't seem to get 1440p (just 1080p) on the second monitor. I tried a DVI-D to HDMI and that was just 1080p, as was the HDMI to HDMI cable provided with the monitor. What cable do I need? Would a DVI-D to display port be any better?

Thanks for your help!
 
Solution
BFG-9000
You would need an active DVI Dual-Link to Displayport adapter (not the other way around), and since nobody seems to make such a thing for a reasonable price, it makes the most sense to get a new GPU.

HDMI is electrically equivalent to single-link DVI, which normally does not have enough bandwidth for 2560 resolutions, but if your monitor has a new enough HDMI port to accept 2560 resolution there, you could consider overclocking your Radeon's DVI or HDMI ports beyond 165MHz pixel clock with ATI Pixel-Clock-Patcher.
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BFG-9000

BFG-9000

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Sep 17, 2016
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You would need an active DVI Dual-Link to Displayport adapter (not the other way around), and since nobody seems to make such a thing for a reasonable price, it makes the most sense to get a new GPU.

HDMI is electrically equivalent to single-link DVI, which normally does not have enough bandwidth for 2560 resolutions, but if your monitor has a new enough HDMI port to accept 2560 resolution there, you could consider overclocking your Radeon's DVI or HDMI ports beyond 165MHz pixel clock with ATI Pixel-Clock-Patcher.
 
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