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Crossfire 5870s

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July 17, 2010 10:21:40 PM

I'm currently using a single HD 5870 and I was thinking of going to a crossfire configuration. My system was built with this in mind so that isn't my concern.

What I'm curious about is whether this is a worthwhile expenditure. I'm an MMORPG player. EQ2 is my game of choice and I run two accounts at once. Will I see any help here?

Will I be able to use four monitors?

Thank you in advance!

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July 17, 2010 10:31:07 PM

for MMOs you probably wouldn't need to. the performance would already be well above 60fps, but if you plan on playing other games it does add a fair bit of performance.

you want an odd number when going a multi monitor setup, which is why 3 is the current norm. if you use 4, you'd have bezels right through the center of the image.

you should be able to drive 3 monitors in EQ2 with a single 5870. again though, if you want to play anything else then a second video card would help retain a good framerate at maximum graphical settings.
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July 17, 2010 10:44:45 PM

This is going to be a really dumb question then. I tried to run three monitors with the single card but could not. Is there a software setting to enable that?

I'm also a little confused about the bezels but probably because I don't fully grasp what you mean. I've a 2 over 2 setup.
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July 17, 2010 11:33:50 PM

you just need to go to CCC and create a group.

http://www.youtube.com/watch?v=RZAkCoaq384

theres a tutorial vid.

what im saying about the even numbers, is that the center of the image will be broken up by the edges of the monitors. this will make playing very annoying. by using 3 monitors you have a central unbroken image and then peripheral vision.

if you want bigger, rather than a wider, image i would suggest going for 3 monitors in portrait mode. head over to widescreen gaming forum if you need any help on that.
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Best solution

July 17, 2010 11:40:57 PM

If you are running two seperate windows to run your two accounts at once on the same computer, you will not gain any performance at all going crossfire. Crossfire does not work in windowed mode. If you alt tab to the other account, then it may give you a boost.

Before you consider the change, determine your current FPS. Back in the first year of EQ2, it was pretty demanding on systems, but it might not today, unless they updated it. If you find you are already getting 60+ FPS, it would not be worth going crossfire regardless if it's in windowed or fullscreen.
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July 18, 2010 12:16:08 AM

Welshmousep: That makes more sense. So you're grouping the monitors instead of what I'm doing, running them separate. Thank you for the advice there.

Bystander: That is pretty critical information then. I am running them windowed to facilitate fast switching. Crossfire can't handle that huh? =\ At least you saved me disappointment!
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July 18, 2010 12:28:13 AM

I don't know if it's a matter of not being able to, but it simply won't at this point in time. It's possible drivers in the future will allow it, unfortunately, it's now :( 
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July 18, 2010 2:11:57 AM

Best answer selected by Ferrel.
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