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NVIDIA GTX Titan SLI vs AMD Radeon HD 7990 Quad-Crossfire - Page 2

post #11 of 21
Thread Starter 
Quote:
Originally Posted by Red1776 View Post

I have the quad 7970 setup and at a triple monitor resolution, the 4th GPU scales well.
The micro-stutter /frame rated reviews are about the 2 x GPU crossfire. Adding cards # 3 &4 take the micro stutter problem out of the equation. I have built a Quadfire machine every 9 months since 2008 (or since it was viable) and adding a third and or fourth card removed micro-stutter every single time.(the library of machines can be found in my signature and profile) This is an observation by other review site as well like Tom's.

I have graphed and charted the vast majority of titles with quadfire including recording frame times as well as rates and at the resolution you are playing at, I would (and have) go with the 4 x 7970 WC setup.
That is my hands on experience and opinion.

Hope it helps smile.gif
Oh that's good to know thanks smile.gif
really? I didn't know that o.o then I guess the 7990 will have no problem in quadfire?
i'd like to see your graphs of quadfire setups, that would be really helpful smile.gif

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post #12 of 21
Quote:
Originally Posted by DawnBladeDN View Post

Quote:
Originally Posted by Red1776 View Post

I have the quad 7970 setup and at a triple monitor resolution, the 4th GPU scales well.
The micro-stutter /frame rated reviews are about the 2 x GPU crossfire. Adding cards # 3 &4 take the micro stutter problem out of the equation. I have built a Quadfire machine every 9 months since 2008 (or since it was viable) and adding a third and or fourth card removed micro-stutter every single time.(the library of machines can be found in my signature and profile) This is an observation by other review site as well like Tom's.

I have graphed and charted the vast majority of titles with quadfire including recording frame times as well as rates and at the resolution you are playing at, I would (and have) go with the 4 x 7970 WC setup.
That is my hands on experience and opinion.

Hope it helps smile.gif
Oh that's good to know thanks smile.gif
really? I didn't know that o.o then I guess the 7990 will have no problem in quadfire?
i'd like to see your graphs of quadfire setups, that would be really helpful smile.gif

Sure, I will put together a few of the info from some more popular games and PM them over. smile.gif
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post #13 of 21
Thread Starter 
Quote:
Originally Posted by Red1776 View Post

Sure, I will put together a few of the info from some more popular games and PM them over. smile.gif
Thank's can't wait to see them smile.gif
post #14 of 21
Quote:
Originally Posted by DawnBladeDN View Post

Oh that's good to know thanks smile.gif
really? I didn't know that o.o then I guess the 7990 will have no problem in quadfire?
i'd like to see your graphs of quadfire setups, that would be really helpful smile.gif
Trust me man i have be there. There will ALWAYS be issues with more than 1 GPU, with certain games or applications. The more GPUs you add, the more problems you will have. Anyone that tells you otherwise is lying, or just doesnt know.
Edited by Swolern - 5/15/13 at 10:48pm
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post #15 of 21
Thread Starter 
Quote:
Originally Posted by Swolern View Post

Trust me man i have be there. There will ALWAYS be issues with more than 1 GPU, with certain games or applications. The more GPUs you add, the more problems you will have. Anyone that tells you otherwise is lying, or just doesnt know.
hrmm now im a bit in a conflicted situation. i'd like to ask, since the 690 is a dual gpu, would this have the same problem as the 7990?

EDIT: Well I read this http://hexus.net/tech/reviews/graphics/41581-nvidia-geforce-gtx-690-sli-surround/ and liked what I saw
Edited by DawnBladeDN - 5/15/13 at 10:59pm
post #16 of 21
Quote:
Originally Posted by DawnBladeDN View Post

hrmm now im a bit in a conflicted situation. i'd like to ask, since the 690 is a dual gpu, would this have the same problem as the 7990?
Depends on the problem. Some yes, some no. I definitely wouldnt go with 2 690s as they will be very limited at a triple screen resolution by their vram.
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post #17 of 21
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Quote:
Originally Posted by Swolern View Post

Depends on the problem. Some yes, some no. I definitely wouldnt go with 2 690s as they will be very limited at a triple screen resolution by their vram.
dual 690s.... limited in triple monitor... you sure? o.o
post #18 of 21
Quote:
Originally Posted by DawnBladeDN View Post

dual 690s.... limited in triple monitor... you sure? o.o
Grunt horsepower of quad 690 with a 5760x1080 resolution. 110% positive you will run into VRAM bottlenecks with the 2gb availible VRAM.
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post #19 of 21
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Quote:
Originally Posted by Swolern View Post

Grunt horsepower of quad 690 with a 5760x1080 resolution. 110% positive you will run into VRAM bottlenecks with the 2gb availible VRAM.
and how would it go on a 7990 quadfire setup? 3GB VRAM... o.o
post #20 of 21
Quote:
Originally Posted by DawnBladeDN View Post

and how would it go on a 7990 quadfire setup? 3GB VRAM... o.o
Regarding the vram bottleneck it would be much better!! There will still be a few circumstances with you hitting the vram limit, but not too many. On the other hand i cannot recommend the 7990 until AMD have fixed their driver problem regarding stuttering(or un-smooth gameplay). The problem seems to be worse when using higher Eyefinity resolutions. The driver fix is stated to be released in June or July. There is a current fix to the problem if you are willing to use Vsync and able to keep your minimums at your refresh rate. But in my opinion that is extra FPS performance that is not able to be utilized.

I have have quad SLI for a couple years. I can only recommend 4-way GPUs for benchmarking, not gaming. The technology for Crossfire and SLI are not to a point to utilize all the extra power of 4 GPUs combined. If this PC is for gaming I would only recommend 2 of the most powerful GPUs thats in your budget, 3 at the most with a couple more problems here and there.

Now im not saying that 4-way GPUs wont be able to be utilized in gaming ever, but the instances on where scaling is good in gaming are few and far between. Most of the time the 4th GPU will not add much if any extra gaming performance, and in some instances cause more problems.

If you want something soon I would I would keep an eye out on the GTX 780s releasing in a week or two.
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