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need help displaying 2 2560x1400 monitors on tahiti 7870

Last response: in Graphics & Displays
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April 2, 2013 9:47:16 AM

i currently own a tahiti 7870 myst edition and just recently bought two shimian 2560x1400 monitors. i was wondering which is the best way to connect both to my 7870.

here are the options that i seem to have

1) buy a mini dp to dual link dvi adapter for $80

2) buy a second video card (radeon 5450) for $30 to run the second one.

3) upgrade to a nvidia card (dont really want to)

im leaning towards option 2. is there any disadvantage to this? the second monitor is only used to watch movies / second display for adobe photoshop / lightroom. ive heard people having issues with mini dp adapters .
a b C Monitor
April 2, 2013 9:55:21 AM

Your card should have come with a minidp to dp adapter. Buy a dp cable and use the adapter for one monitor. For the other use dl-dvi.
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a b C Monitor
April 2, 2013 9:55:48 AM

I forgot to mention I have a 7870 and use a minidp to dp adapter with a dp cable to run an auria 2560x1440.
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a b C Monitor
April 2, 2013 10:00:07 AM

Why not use one on DVI and one on HDMI? Chances are you already have the cables on hand? I currently run a Powercolor 7850 running 2 1920x1080. It works fine and I already had the cables so it was free.
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April 2, 2013 10:08:58 AM

the shimian monitors are only DVI only. HDMI highest resolution is 1080P, wont work with 2560x1400 monitors
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a b C Monitor
April 2, 2013 10:09:34 AM

HDMI won't do 2560x1440. I assumed your card had 1 dl-dvi, 1 hdmi, and 2 minidp ports. Am I wrong? If you had 2 dl-dvi it would be cheaper to use those.
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a b C Monitor
April 2, 2013 12:45:00 PM

I thought the hd6000s and hd7000s used a HDMI 1.4a Dual Link connection for a max res of 4096 × 2160p. A straight HDMI to dl-dvi adapter cable can be had for like $5 and should work. All my monitors are 1920x1080@60 so I have never tried it and can not confirm. Although the spec on the website for you card seems to confirm that the HDMI can go to 2560x1600.

About option 2:
A hd5450 for around $30 or a HD6450 for around $40. Would work perfectly for your needs. Keep in mind your mother board would have to have a second PCI-e slot.

We used this option all the time in the office for the graphic designers, so they can do e-mail and stuff with out taking any resources from their workstation cards.
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April 2, 2013 2:47:15 PM

bucknutty hey thanks for your help and that is my card. for some reason I cannot find an hdmi to dual link adapter. seems like one doesn't exist? if there is one that would be excellent. but a second card would be nice to take the load off my 7870. I have 4 pcie slots on my mobo
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