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3x Sapphire Radeon HD6970 2GB or 2x MSI Lightning Extreme GTX GeForce 580 3GB - Page 4

post #31 of 77
Quote:
Originally Posted by snelan View Post
As said, 580s.

EDIT: Yes, now that I see these, you should go 6970s. That would give you the best possible performance. However, if you were ever looking to get another 580, go with the 580s, because Three 580s will smoke three 6970s any day.
Absolutely they would! That is of course assuming no problems with trifire/triSLI. Unfortunately three 580's cost as much as 2 6990's lol. I think that's why the OP asked about the three versus two. The three 6970's can be had for the price of two 580's which is why they are such an excellent price/performance balance. Don't get me wrong, the 580 is one hell of a card (not so much the 590 haha), and 580's in SLI reign supreme for dual GPU configs.

However, even on my little TN panels at 5760X1080 I never see 2GB of VRAM usage that I can think of off the top of my head. 3GB is fantastic no argument, but I think at the current development of gaming titles it's a little overkill. Granted I do not have X1600 resolution for my three panels and that may chew through his VRAM but it will also eat FPS, which is why I feel the 6970's represent the best solution.
    
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post #32 of 77
Quote:
Originally Posted by snelan View Post
because Three 580s will smoke three 6970s any day.
Esp in burning your money
    
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post #33 of 77
Thread Starter 
Quote:
Originally Posted by snelan View Post
This is a good point, OP, what CPU are you running?
I will be overclocking my i7 2600K to at least 4.5 if not 5.0GHz
post #34 of 77
If you like multi displays maybe go with the 4GB version of the 6970 or the just one 6990.
    
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post #35 of 77
Quote:
Originally Posted by arifay View Post
I will be overclocking my i7 2600K to at least 4.5 if not 5.0GHz
Then that's as good as it gets. I wouldn't worry about a bottleneck, because even if you do hit one (which I really really doubt that he will at those resolutions), there nothing you could do to change it.

OP you might consider filling in your rig specs for us to avoid questions like that:

LINK


Quote:
Originally Posted by Scope View Post
If you like multi displays maybe go with the 4GB version of the 6970 or the just one 6990.
There is no 4GB 6970 or 6990. The VRAM doesn't stack. You simply have 2GB usable VRAM per card.
    
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post #36 of 77
I just went with 2 580 Lightnings and I can't wait! You also have to factor in other Nvidia advantages over AMD when comparing. The 580's are far superior in folding for instance and have Physx support which AMD lacks. Tesselation performance is also improved with Nvidia cards so its not just a matter of "3 6970's will smoke 2 580's"....
post #37 of 77
The 6XXX series improved tessellation as well, and PhysX titles are rare, there's no real need. He's right about folding, but your 2600k will push more points then both 580's together, even on SMP.
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post #38 of 77
3 6970s
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post #39 of 77
Quote:
Originally Posted by Majin SSJ Eric View Post
I just went with 2 580 Lightnings and I can't wait! You also have to factor in other Nvidia advantages over AMD when comparing. The 580's are far superior in folding for instance and have Physx support which AMD lacks. Tesselation performance is also improved with Nvidia cards so its not just a matter of "3 6970's will smoke 2 580's"....
Aye it is. The OP didn't ask about rendering or folding. PhysX is something 99% of people will agree to call a dead proprietary technology. And while a 580 is better at folding AMD is better for BOINC and other unmentionable things (I'm looking at you OCN staff). And while tessellation is faster on a NVIDIA GPU due to architecture differences, AMD shines in their own ways as well.
    
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post #40 of 77
Quote:
Originally Posted by Senator View Post
Aye it is. The OP didn't ask about rendering or folding. PhysX is something 99% of people will agree to call a dead proprietary technology. And while a 580 is better at folding AMD is better for BOINC and other unmentionable things (I'm looking at you OCN staff). And while tessellation is faster on a NVIDIA GPU due to architecture differences, AMD shines in their own ways as well.
I'm not necessarily saying that 2 580's are better, I'm just saying its not as cut and dry as 3 6970's are better than 2 580's. It just depends what your personal needs are....
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