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Performance of Radeon HD 6790 Crossfired?

post #1 of 10
Thread Starter 
I was intending to get two more 23" monitors for my computer to play games like Crysis 2, Need For Speed, and Battlefield 3, etc. I was able to max out on Bad Company 2, Modern Warfare 2, and Need For Speed Hot Pursuit 2010 with my current graphics card (Radeon HD 6790) and 1920x1080 monitor. So my question is if I get a second graphics card to crossfire with my current one, would I be able to have the same performance with three monitors in total?
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post #2 of 10
You may or may not have to drop some settings down a bit, but I think it will perform pretty well for those games with the 3 monitors in crossfire. The scaling on the 6xxx series is insane, I think you'll be happy with the results.

http://www.hardwareheaven.com/review...ty-vs-sli.html

also this:

http://www.overclock.net/nvidia/9124...-vs-580-a.html

edit: woops, read the card as 6970 not 6790 haha. Yeah, uhm, you'd be pushing your luck trying to run those games with 3 monitors, even with crossfire. You may pull it off with low settings...but no guarantee.
Edited by Allen86 - 10/22/11 at 4:06pm
    
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post #3 of 10
Thread Starter 
Okay thanks, I was getting a little concerned about the performance that it would not be able to run smoothly. You have taken a lot of stress off of me now.

EDIT:
I don't have the 6970, I have the 6790.
Edited by thrplayer1 - 10/22/11 at 4:07pm
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post #4 of 10
Yeah, re-read my post. My mistake, I thought it said 6970, not 6790...makes all the difference lol

Like I said, you may be able to pull off with low settings perhaps, but there's really no garantee...with 3 monitors running at that resolution you pretty much need 2GB of VRAM...or it's just going to go all down hill from there.

I'd sell off your card and look into some upgrades, if you can afford it..try getting atleast some 6870 2GB or even better, some 6950 2GB if you're seriously thinking about investing into a 3 monitor gaming PC.
    
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post #5 of 10
Thread Starter 


Would this be sufficient if crossfired with the same exact graphics card:
http://www.newegg.com/Product/Produc...82E16814150563
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post #6 of 10
That will work just fine, 2 of those should run games on the 3 monitors (or eyefinity) at a decent rate. You may need to lower some settings, but overall it will perform fairly well and you shouldn't have to worry much.
    
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post #7 of 10
Thread Starter 
Ok, thank you.
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post #8 of 10
Yeah, don't get another 6790 as it won't be enough for 3 monitors, 2 6870s in crossfire should max out nearly every game.
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post #9 of 10
Yeah two hd 6870's in crossfire should be fine.
You may still have to play with the settings in BF3 to get 60 FPS, but they should due pretty well regardless.

Just a side note, have you played crysis 2 yet?
Not to get you down or anything but I had trouble out my ass trying to get that game to work. I ended up just writing it off as a lost cause after doing a few google searches that told me a lot of people have had the same problems with the game, and the game dev's are refusing to fix them. It seems like it's really just a hit or miss whether you are going to be able to play it or not.
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post #10 of 10
Get a 6870 and crossfire that with the 6790 first-you can see how good 6790's would perform.
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