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[EVGA] 3GB GTX 580 Availability Soon - Page 2

post #11 of 23
Quote:
Originally Posted by RagingCain View Post
RAM limitation occurs at the 5760x1080x2/4AA,5760x1200x0/2xAA, 2560x1600x4/8xAA, on just about every Multi-Monitor benchmark I have seen. I am sure HardwareHeaven, HardOCP, TPU, and AnandTech have all the information you require.

Primarily these cards would be designed to alleviate the issue of AMD competition having better performance at multi-monitor, very high res monitors, with eye candy enabled.

This is just a thread announcing some GTX 580 news.
But I have seen SLI vs CFX reviews for the 6990 vs the GTX 590 and in fact at those resolutions the GTX 590 seems to have better scaling most of the time. For same games though you simply can't see SLI or CFX working

I guess I'll check out some 6970 CFX vs GTX 580 SLI reviews

For example here is a recent review

http://www.guru3d.com/article/triple...d-radeon-6990/

You can see that SLI or CFX does not work in some games, I think it has to do more with drivers than RAM. However in the end the Nvidia cards seem to have better performance overal.

Quote:
I must say that performance for both products 'per graphics card' is impressive, I mean where we could we enabled 8xAA performance and most titles can actually take that slap in the face quite well, on either card. Weirdly enough though, how do I say this right, I felt that the R6990 is the stronger performer, but the GTX 590 is simply better supported and runs a tad smoother at 5760x1200.
Quote:
Now then, the dark horse -- Quad GPU gaming with two cards is in favor for NVIDIA, the overall scaling is much better, and here again each team takes some wins and total losses.

Edited by saulin - 4/8/11 at 2:09pm
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post #12 of 23
Quote:
Originally Posted by saulin View Post
But I have seen SLI vs CFX reviews for the 6990 vs the GTX 590 and in fact at those resolutions the GTX 590 seems to have better scaling most of the time. For same games though you simply can't see SLI or CFX working

I guess I'll check out some 6970 CFX vs GTX 580 SLI reviews
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post #13 of 23
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Originally Posted by Coolio831 View Post
All of them if they can run 5760x1080P with 8xAA I miss my 470's vram. I was going to get 2nd 560ti, but with my bday party (bdays on the 12th) tomorrow i'll see how much i can squeeze out the uncles for a new build.
You squeeze them good.


...That sounded dirty. Ugh.
 
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post #14 of 23
Thread Starter 
Quote:
Originally Posted by saulin View Post
But I have seen SLI vs CFX reviews for the 6990 vs the GTX 590 and in fact at those resolutions the GTX 590 seems to have better scaling most of the time. For same games though you simply can't see SLI or CFX working

I guess I'll check out some 6970 CFX vs GTX 580 SLI reviews
Better scaling != Wins Benchmarks

Even though the 6970 is slightly weaker than the GTX 580 in some benchmarks, we will say:
95% Performance, vs 100% Performance (just an example)

Having 100% scalability from a second 6970 would equal 190% performance total.

Having 80% scalability from a second GTX 580 would equal 180% performance. Thus even though you have the stronger card, the GTX 580, the 6970 in Crossfire X has more performance than a GTX 580 SLi. The scalability covers the lossed ground and then over takes the cards.

Now looking at the 6950.

Having performance of 90% compared to 100% from a GTX 580.

Same percentages of scaling @ 100% and 80%.

The total performance of 2x 6950s is 180%.
The total performance of 2x 580 is 180%.

Having better scaling this time, didn't mean it had better performance. Scaling is only meaningful to the instance it is being used, and is nothing but a representation of giving a user how much extra performance he gets adding a second card, or a second card going to a third.

This thread is not really the place for this though, however, you can see by this example in Metro2033 of 570 having better scaling of the 6990, yet when AA is added the performance tanks in comparison to that of the 6990, which remains steady. That is the VRAM wall being crossed.
http://www.tomshardware.com/reviews/...e,2878-13.html
Edited by RagingCain - 4/8/11 at 2:20pm
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post #15 of 23
Quote:
Originally Posted by RagingCain View Post
Better scaling != Wins Benchmarks

Even though the 6970 is slightly weaker than the GTX 580 in some benchmarks, we will say:
95% Performance, vs 100% Performance (just an example)

Having 100% scalability from a second 6970 would equal 190% performance total.

Having 80% scalability from a second GTX 580 would equal 180% performance. Thus even though you have the stronger card at one, the 6970 in Crossfire X has more performance than a GTX 580 SLi.

Now looking at the 6950.

Having performance of 90% compared to 100% from a GTX 580.

Same percentages of scaling @ 100% and 80%.

The total performance of 2x 6950s is 180%.
The total performance of 2x 580 is 180%.

Having better scaling this time, didn't mean it had better performance.

This thread is not really the place for this though, however, you can see by this example of 570 having better scaling of the 6990, yet when AA is added the performance tanks in comparison:
http://www.tomshardware.com/reviews/...e,2878-13.html
What I'm getting at is that a lot of performance issues have to do with scaling and not vram for SLI/CFX setups. I do understand that some games at 5760x1080 plus 8x AA are not doable but that's not just because there is not enough RAM but because it also does not have the raw power I would think.

If you looked at that review you see that both the 6990s and GTX 590s have driver issues. Scaling does play a big factor in performance. Specially when you need more than 1 card to be able to play at resolutions like 5760x1080
Edited by saulin - 4/8/11 at 2:25pm
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post #16 of 23
Quote:
Originally Posted by saulin View Post
What I'm getting at is that a lot of performance issues have to do with scaling and not vram for SLI/CFX setups. I do understand that some games at 5760x1080 plus 8x AA are not doable but that's not just because there is not enough RAM but because it also does not have the raw power I would think.

If you looked at that review you see that both the 6990s and GTX 590s have driver issues. Scaling does play a big factor in performance. Specially when you need more than 1 card to be able to play at resolutions like 5760x1080
You do realize what "scaling" is correct? You should know by now that newer generation AMD, overall, scale better than nVidia in dual card situations. Even if a 590 was faster in every aspect than a 6990, the 6990 would still have better scaling due to the relative performance of a single 6970 core, then compared to the dual performance numbers.

Bolded:
Your bolded statement, absolutely. I agree on that.

I don't even want to take this thread off track with you though bro, we both got our own opinions.

I'm personally waiting on 28nm, 384 bit / 3gb as a standard configuration. I have a feeling both companys will feature this with future flagship single gpus.
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post #17 of 23
Quote:
Originally Posted by Dmac73 View Post
You do realize what "scaling" is correct? You should know by now that newer generation AMD, overall, scale better than nVidia in dual card situations. Even if a 590 was faster in every aspect than a 6990, the 6990 would still have better scaling due to the relative performance of a single 6970 core, then compared to the dual performance numbers.

Bolded:
Your bolded statement, absolutely. I agree on that.

I don't even want to take this thread off track with you though bro, we both got our own opinions.

I'm personally waiting on 28nm, 384 bit / 3gb as a standard configuration. I have a feeling both companys will feature this with future flagship single gpus.
You didn't read the review did you?

Did you read what I qouted from the review. It clearly says that on that review the GTX 590s scaled better than the 6990s.
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post #18 of 23
Quote:
Originally Posted by saulin View Post
You didn't read the review did you?

Did you read what I qouted from the review. It clearly says that on that review the GTX 590s scaled better than the 6990s.
Yeah, now i have. Should have posted it originally backing up your statement instead of the edit.

Regardless, that's a 4gpu scaling review. Looks like nVidia got it. 2 & 3way configurations go's to AMD though.

This is clearly a 580 thread, so what does a 4gpu 6990 / 590 comparison have to do with that anyways?
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post #19 of 23
Quote:
Originally Posted by Dmac73 View Post
Yeah, now i have. Should have posted it originally backing up your statement instead of the edit.

Regardless, that's a 4gpu scaling review. Looks like nVidia got it. 2 & 3way configurations go's to AMD though.

This is clearly a 580 thread, so what does a 4gpu 6990 / 590 comparison have to do with that anyways?
Actually I'm just saying that scaling is probably a bigger factor than vmem when you have 1.5 gig per card vs 2 gig per card
Edited by saulin - 4/8/11 at 2:44pm
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post #20 of 23
From what I've seen in the single gtx 580 3GB reviews, it offers slightly better FPS (min/max) over a normal 580. That is a single card on a normal 19x1080 res. Now 2/3way SLI and you'll see a larger improvement in gains (min&max) over regular 580's.

It's really a small market and not really out to compete vs anyone. It's aimed at the folks who use surround vision, and possibly other programs that use that much VRAM (not sure which).

Plus, it doesn't matter that they are late, per se', because you can't find the Palit/Gainward cards anywhere, or in stock for that matter. They will sell out just as fast.
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