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[Anand] A Look At Triple-GPU Performance And Multi-GPU Scaling, Part 1 - Page 10

post #91 of 149
Point taken, then lets look at this.

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post #92 of 149
Quote:
Originally Posted by grunion View Post
Point taken, then lets look at this.

Yeah, both below 60 at stock. But doesn't that do a dis-service to both cards though? I mean, they could both do a lot better if they were OC'd, even on air. My DCII 570s are stable at 1020Mhz with 1.17V. 6970s can usually do 1000Mhz on air. 6970's 800Mhz to 1000Mhz won't boost fps as much as the 570's 732Mhz to 1000Mhz will.

I wish there were more sites that did OC reviews. If a 7970 did horrible at stock but could overclock to 1500Mhz on air, I would buy the 7970 over a 670 even though 95% of the review sites would pit it up against competitors while running at stock. It seems to be an important part left out of most reviews.
Edited by PoopaScoopa - 4/5/11 at 7:24am
post #93 of 149
Quote:
Originally Posted by PoopaScoopa View Post
An extra 720MB does nothing to help. Even CallsignVega's triple 30" setup only used 1.5-1.6GB out of the 3GB cards he has in Crysis 2.
In the Crysis 3 Youtube video of mine the VRAM usage is stuck at around ~1730 MB the whole demo. Thats on a tiny multi-player map with only 2xAA. In Crysis 1 out in the open in some areas with only 2xAA the VRAM is ~2400MB. In DCS:A-10C (flight sim) I regularly see ~2700MB VRAM usage.

Quad-SLI has been working beautifully as you can see in the videos.
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post #94 of 149
Quote:
Originally Posted by CallsignVega View Post
In the Crysis 3 Youtube video of mine the VRAM usage is stuck at around ~1730 MB the whole demo. Thats on a tiny multi-player map with only 2xAA. In Crysis 1 out in the open in some areas with only 2xAA the VRAM is ~2400MB. In DCS:A-10C (flight sim) I regularly see ~2700MB VRAM usage.

Quad-SLI has been working beautifully
as you can see in the videos.
Don't ever utter those words around here. Apparently it's "actually" tremendously horrible.
post #95 of 149
i7 @ 3.3Ghz to tests Triple cards performance?

I wonder why 2X SLI was faster than 3x SLI in some cases lol
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post #96 of 149
People

Minimum frame rate >>> Average frame rate.

2Gb Frame buffer >>>> 1.2/1.5Gb Frame buffer.

I've moved from a 1Gb card to a 2Gb card and I can tell you one thing.... the 2Gb card while offering lower performance is sooooo much smoother as the card can go about doing it's thing with out having to worry about waiting for the memory sub-system to catch up.
post #97 of 149
The AMD cards are so much better

Let me show you why..

Warhead average fps - GTX 580 winner



Warhead minimum fps - 6970 smacks the GTX 580



That will be a common problem for Nvidia cards...

More VRAM on your cards for the next generantion please Nvidia...
post #98 of 149
the reason i posted some 2560x1600 with 8x AA reviews is because not every site has 5760x1080 reviews that are with the current cards and recent drivers, in absense of eyefinity reviews 2560x1600 with 8x AA is the closest thing to.



4x AA tanks the 590, obviously there are memory issues, if the 590 hit them, a pair of 570's would do worse regardless of whatever clocks you have.

BC2 -

here is another review
http://www.hardwareheaven.com/review...ty-vs-sli.html

at the bottom of this at a lower res even the 570's in sli lose to the 6990 which is slower than a pair of 6970's
http://guru3d.com/article/his-radeon...fire-review/16


Overclocking cant be counted as conclusive evidence because with stock clocks every single person who buys that card can do those clocks, when it comes to overclocking its a crapshoot.
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post #99 of 149
Anyone know what 3x 5870's are like in games? can anyone test it here using the best drivers?

Just curious, thinking about it for Q4 this year to throw into my AM3+ build. If the performance won't be that good then no point.
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post #100 of 149
Quote:
Originally Posted by PoopaScoopa View Post
Don't ever utter those words around here. Apparently it's "actually" tremendously horrible.
Quad-SLI 580 3GB performance in itself is not ''horrible''. It's really good. But ''scaling'' in Quad-SLI is. And Quad-SLI 1.5Gb 580 is a total waste of money with the limited VRAM.

Like Grunion said, you are really confusing ''GPU performance (fps)'' with ''multi-GPU scaling'', and ''OC scaling''. Look at the title of the thread: ''multi-GPU SCALING''.

And Quad-SLI is only useful for 2 games, like Crysis and Metro. LOL. Over 2000$ in cards (plus the waterblocks since it's too noisy and too hot with stock cooling to be usable) for 2 games, when 3X unlock 6950 at 1000$ would have done the same job with all the other games on the market? And also because AMD ''multi-GPU scaling'' is much better then Nvidia...

I would take 580 3Gb Tri-SLI any times of the day over Quad-SLI, because of the bad Nvidia multi-GPU scaling. Nvidia multi-GPU scaling becomes worst and worst with every card you add. The fourth card is not giving anything in real life gaming conditions. It's only good for benching, for e-peen and ego-stroking, and making 50 times the same build threads all over the internet multi-verse.
Edited by Levesque - 4/5/11 at 9:15am
    
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