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1GB of Extra Vram worth it at 5760 by 1080

post #1 of 16
Thread Starter 
I am looking to upgrade, and wanted to draw from OCNs' collective experience. I am looking at GTX 680/70 and the 7970/50. I want the most cost effective way of SLI/CFX two of these cards while getting the best temps, acoustics, and FPS.


I was thinking SLI GTX 670 DC2, but am worried I will be limited by the 2GB of vram at this resolution for gaming.
post #2 of 16
Not for the current games. Maybe BF3 comes close but thats all.
Depends how long you want to keep the cards for. id think once the new consoles are released in a year or two graphics requirements will go up noticeably but until then I doubt it.
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post #3 of 16
While 2GB is enough for eyefinity/3DS now and probably the next couple years, if you don't plan on upgrading for awhile the 4GB GTX 670's and 3GB 7970's are good options.
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post #4 of 16
At that resolution 2GB is the bare minimum. So to answer your question an extra 1GB is worth it. If you want more than 2GB then 7950/7970 will give you the best price to performance. If you go with just the 2GB then GTX670 is the best choice. If you are looking to keep the card(s) for a while then the 7950/7970 might age slightly better because of the 384 bit and 3GB VRAM.
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post #5 of 16
I`d get HD 7970 3gb cheaper(looking at vram) and drivers make the card performs better than a 670 GTX 2gb
and generally HD 7970 performs better(1920x1080)

and single video card 7970 vs 680 GTX @5760x1080, 7970 is a bit better
Edited by PontiacGTX - 7/14/12 at 9:06am
post #6 of 16
Quote:
Originally Posted by PontiacGTX View Post

I`d get HD 7970 3gb cheaper(looking at vram) and drivers make the card performs better than a 670 GTX 2gb
Nvidia's driver suite is a little more solid IMO, it has less bugs and more features.
Quote:
Originally Posted by PontiacGTX View Post

and generally HD 7970 performs better(1920x1080)
Actually its slower by 2FPS average across a wide range of games.

http://www.techspot.com/review/550-best-gaming-graphics-cards/page6.html
pr1.png

And not alot changes at 2560 X1600

pa6.jpg
Edited by amstech - 7/14/12 at 12:04pm
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post #7 of 16
If anything, I say grab the MSI R7950 Twin Frozr III model, it's $319.99 right now, and can overclock incredibly easy if you need more performance.
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post #8 of 16
Quote:
Originally Posted by amstech View Post

Nvidia's driver suite is a little more solid IMO, it has less bugs and more features.
Actually its slower by 2FPS average across a wide range of games.
http://www.techspot.com/review/550-best-gaming-graphics-cards/page6.html
pr1.png
And not alot changes at 2560 X1600
pa6.jpg
I said 1080p.. is a big difference

700

really HD 7970 OCed as high as Ghz clocks beats 680 GTX
Edited by PontiacGTX - 7/14/12 at 2:27pm
post #9 of 16
Quote:
Originally Posted by Live_free View Post

I am looking to upgrade, and wanted to draw from OCNs' collective experience. I am looking at GTX 680/70 and the 7970/50. I want the most cost effective way of SLI/CFX two of these cards while getting the best temps, acoustics, and FPS.
I was thinking SLI GTX 670 DC2, but am worried I will be limited by the 2GB of vram at this resolution for gaming.

Its not the VRAM alone that counts but the memory bandwidth also at 5760 x 1080 resolution.

http://techreport.com/articles.x/22890/7

Also there are no reviews of HD 7970 CF with the 12.7 drivers which have improved perf significantly.

http://vr-zone.com/articles/amd-radeon-hd-7990-debuts-as-a-very-limited-edition-in-july-/16567.html

HD 7970 x2 or HD 7990 cards will launch along with the Catalyst 12.7 WHQL at the end of July.

I think you should wait for a couple of weeks till the HD 7970 X2 is launched and reviews are out of custom HD 7970 X2 designs. Once you get an idea of which are the best reviewed HD 7970 x2 cards based on temps, acoustics and clock speeds you can make the decision.

http://www.techpowerup.com/167182/PowerColor-HD-7970-X2-Devil-13-Taken-Apart.html

"The pictures reveal a PCB that's both longer and taller than that of the HD 7970, to create room for two 28 nm "Tahiti" GPUs, a total of 24 GDDR5 memory chips (12 on each side), a PLX PEX8747 PCIe 3.0 bridge chip, and a VRM that consists of 5+2+1 phases per GPU system. The card draws power from three 8-pin PCIe power connectors. The VRM consists of solid-state chokes and Renesas Driver-MOSFETs. Display outputs include two each of DVI and mini-DP, and an HDMI. Each GPU system has a pair of BIOS'es (performance and failsafe). "

The HD 7970 x2 designs are all going to be from AMD partners with very high quality board design and enthusiast overclocking friendly BIOS options .
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post #10 of 16
Thread Starter 
I was looking at these three cards:

GTX 670 4GB

7970 Double D Black Edition

GTX 680 4GB

I ultimately want two cards, that will not cook themselves on long gaming adventures fully overclocked. That is why I worry about stock coolers. I see no DC2 or Twin Frozr 4GB version of the 680/70. The 7970 on the other hand, well lets just say I want to move from ATI. They have been great, I just want to return to the green team.

So what would be my best choice in terms of OC, acoustics, heat, and performance?
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