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2x GTX 670 4GB vs GTX 690

post #1 of 11
Thread Starter 
I'm not sure which one I should get. Both options are going to have a water block(s) added to it and needs to be able to support 2560x1440 with HD textures. Other considerations include that I will be using the 670s in x8/x8 in comparison to the 690 running in x16.

670s:
$450 ea
4GB VRAM
2x Waterblock cost
PCIe at x8

690:
$1000
2GB VRAM
Waterblock
PCIe at x16
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post #2 of 11
The overall cost and performance of the 690 will trump the 670's. The 690 often performs 95% as well as 680's in SLI and the cost difference is trump by the cost of getting two waterblocks vs. one.
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post #3 of 11
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post #4 of 11
Thread Starter 
Quote:
Originally Posted by Cha0s_Cha0 View Post

The overall cost and performance of the 690 will trump the 670's. The 690 often performs 95% as well as 680's in SLI and the cost difference is trump by the cost of getting two waterblocks vs. one.

See that was my rational as well, I just don't want to be stuck with the 2GB VRAM on the 690, I wish someone would come out with a 4GB model.

Thank you for the video tx-jose, but I was looking for a comparison of the 4GB model with price point comparison.
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post #5 of 11
The 690 is 4gb... it's two 680's on one PCB - that includes the RAM from the 680's thumb.gif

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=gtx+690&x=0&y=0
post #6 of 11
Quote:
Originally Posted by FromUndaChz View Post

The 690 is 4gb... it's two 680's on one PCB - that includes the RAM from the 680's thumb.gif
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=gtx+690&x=0&y=0

its really a 2GB card since essentially its SLI on a stick and SLI'ed GPU's VRAM doesn't stack
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post #7 of 11
Thread Starter 
Quote:
Originally Posted by FromUndaChz View Post

The 690 is 4gb... it's two 680's on one PCB - that includes the RAM from the 680's thumb.gif
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&N=-1&isNodeId=1&Description=gtx+690&x=0&y=0

No. It's 2x2GB. SLI does not share VRAM. Damn marketing ploys.
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post #8 of 11
I knew SLI and xFire don't stack vRAM - I just made the incorrect assumption that on such a high end card, that they actually meant 4GB as in per GPU. Silly me for thinking a company would do such a thing.. lol
post #9 of 11
Since x8 PCI E doesn't really make a noticeable difference and you could use extra Vram at that resolution i suggest you go with two 670's.
The limited availability of 690 might be problematic as well .........
    
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post #10 of 11
There are benifit differences between set ups with two 670 SLI 4GB vs a dual 690 GPU. Pro's and Con's to both sides. Even at your 2560x1440 resolution I don't feel your being limited by 2GB vs 4GB currently. Looking down the road and longevity you may want to play it safe even if for a bit less performance and go with the two 670's in SLI.

Source - NVIDIA GeForce GTX 670 SLI

411

411

411


Notice that the extra VRAM on the 7970 3GB isn't really equating to that much difference in performance than one GTX 670 2GB even on highly demanding current game like BF3.

Still going with 670 SLI 4GB would be the safest bet to eventually pay off. smile.gif
 
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