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I just bought a new video card, a Radeon 7870. Quite excited. Problem is it has 1 DVI, 1 HDMI and 2 Mini DisplayPort ports. I have three monitors. High end IPS panels, 1920X1080 resolution. What is the best way to connect these three monitors to my new graphics card?

For inputs, the monitors have 1 HDMI, 1 regular DisplayPort, 1 DVI and 1 VGA. At the moment I could get two to work, 1 through DVI and 1 through HDMI, though I hate mixing standards like that. My other thought would be to get 1 or 2 Mini DisplayPort to DVI adapters and run all 3 monitors off of DVI to keep things standard.

Other suggestions? Is there an inherent advantage of say a Mini DP to DP adapter vs a Mini DP to DVI?

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  • If I fits I sits. Else look into purchasing adapters.
    – cutrightjm
    Apr 11, 2013 at 2:01

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To use three monitors with AMD Eyefinity at least one of them has to use the display port (either mini or full). This table is in the wikipedia article for 5800 cards but I am pretty sure it applies to the 6450 as well:

table

If you don't have a monitor with display port as an input you can get an active DisplayPort to DVI-D adapter. I have a 6950 with my main monitor using HDMI one side monitor using DVI-D and the other using this adaptor to DVI. It works very nice the only downside being that occasionally when I wake the computer from sleep the monitor on the adapter doesn't wake up. If I unplug and replug the adapter it works.

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