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Old October 10, 2011, 08:26 PM
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Default 6870 x2 vs 6990 or gtx590

Would a single 6990 or gtx 590 be able to outperform my 6870's in crossfire? I can't really find any benchmark comparisons for the 6990 or gtx 590. I only know of 1 place to look really. Lately I have been noticing many people say 1 high end card is better then 2 lower end cards. Why is this? What are the benefits of having 1 card vs 2 cards?

I really only play StarCraft 2, and the dual 6870s serve me very very well. Smooth seamless graphics on extreme gfx setting with a high fps in a 4 vs 4 game. Even during late game 4v4 the fps still stays over 50 on extreme. I will also be playing Battlefield 3 and Diablo 3 when they come out. However, when I was playing the BF3 beta I had some funky stuff happening with the graphics when I was looking through my sniper scope. I'm not sure how to describe it but it was like lines running across the screen randomly. Is this micro stuttering or artifacting and is that what is caused by crossfire/sli? Or is this caused by BF3 being in beta stages and drivers and stuff?

I love my games, I play TONS. I loved BF3 haven't played an fps since 2142 and the 1942. The money isn't really an issue and am willing to invest in a 590 or 6990 if it is going to improve my gaming experience. So what do you guys think. Which will give me a better experience?

Also will I be able to run 3 monitors off a single 590/6990 or does that require additional cards?
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Old October 10, 2011, 08:37 PM
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Microstutter is like having really low fps, it is "choppy" depending on the level of stutter it can be unplayable. Your fps will look good but it wont feel good.
The beta IMO wasnt a good idea of performance , TBH I would at least wait for the retail to go out then see with some good drivers. I had the same issues graphically wise on my 6970's. Degrading performance ect.

For 3 monitors do you want to go eyefinity,surround?
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Old October 10, 2011, 09:57 PM
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It is artifacting you are seeing, it could be beta problems but it also might not be. Also the 6990 and 590 are just two gpu's running in xfir/sli on one card. Personally I would recommend the 590 it is about equal to the 6990 in performance but has better driver support and runs a little quieter (although it's still loud).

You will see an improvement over your 6870's but it really wont' be all that much.

Also this is my overall recommendation, in feb-march 2012 AMD and/or nvidia will be releasing their graphics card using the 22nm manufacturing process. These cards should see great performance gain at a lower price. I highly recommend waiting for them considering you have more than enough GPU power for now.
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Old October 11, 2011, 02:42 AM
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I am toying with the idea of going eyefinity for BF3 and possibly whatever else comes my way in the future. Hopefully more games will be using it in the future. Unfortunately iirc Diablo 3 won't support eyefinity so I'm not too dead set on it since that game will be using probably 100% of my game time for a good year when it comes out....

I guess by the sounds of it, it's a good idea to stick with what I have for now as it meets my gaming needs. Maybe if I need to when BF3 comes out I will upgrade, but the idea of a whole new series of cards coming out in Q1 2012 sounds like the best buy to me.

Do you have any clue how much these new cards will cost? even if it's a wild guess I'd like to know what someone thinks. I still want price for performance I don't want to spent like over a thousand bucks or something silly.
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Old October 11, 2011, 04:12 AM
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They should be cheaper than the old cards. whenever you shrink the die size you make it much cheaper to manufacture cards so the manufacturing costs are lower therefore price should be lower (theoretically).
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Old October 11, 2011, 04:49 AM
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Hands down a 6990, 2 6970s, a 590 or 2 580s will destroy 6870s. I'm speaking from personal experience of running 6870s in crossfire for eyefinity before jumping to 560 Tis, then 580s and now 6970s.

Seeing as both the 590 and 6990 are actually dual cards (and the fact AMD only needs one card to drive 3 monitors) you will be able to game in three monitors with just one or the either. Be forewarned that gaming on 3 monitors means that you may not be able to max the settings on every single game and get amazing frame rates due to the fact you're driving 3 times as much pixels as a standard gamer at 1920 x 1080. Also, the more ram a video card has the better for multiple monitor gaming as they really can eat it up as well. This is where the 6870 comes up severely short with only 1GB per card, whereas the 590 has 1.5GB per card and the 6990 2GB per card.
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Old October 13, 2011, 09:54 AM
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I'm surprised you would go from 2 6870's right to a dual gpu rather than to dual 580's/6970's as an option. The nice thing about a 6990 is you could add a 6970 at a later date if you wanted extra power and not have to worry about how fast your 3 PCIE buses will be.
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