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[TPU] More GeForce GTX 690 Details Surface - Page 5

post #41 of 63
Quote:
Originally Posted by Mhill2029 View Post

He's not arguing mate, it's a discussion tis all....
I never said i prefer not to have SLI, i prefer Single GPU's in Multi SLI configs over Dual GPU solutions. Also my discussion was about Multi GPU configs of 3 or more GPU's but he keeps talking about 2GPU's vs 2GPU's where microstutter and scaling won't be as paramount.
Either way, i give up lol

Yes in quad SLI problems with micro stutter and scaling will inherently be worse that i fully agree on , it's just dual GPU quad SLI and four card quad SLI will suffer equally from this issues no difference here , if anything dual GPU cards might be slightly better.
That's all I'm trying to explain here.
Whether you like dual GPU cards or not it's your personal preference.

I feel like we're going in circles here.
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post #42 of 63
I`ve read quite a bit about micro-stutter and learned you don`t have much micro-stutter past dual-GPUs, in fact once you get 3 or 4 GPUs the latency does drop, especially with 3 GPUs, 4 is a bit better but no major improvement.

From wikipedia:
Quote:
Micro stuttering is a term used in computing to describe a quality defect inherent to multi-GPU configurations using alternate frame rendering (AFR), such as nVidia SLi and AMD CrossFireX. It manifests as irregular delays between frames rendered by the multiple GPUs, causing the instantaneous frame rate of the longest delay to be significantly lower than the frame rate reported by benchmarking applications, such as 3DMark, as they usually calculate the average frame rate over a longer time interval. In lower frame rates[note 1] when this effect may be apparent the moving video appears to stutter, resulting in a degraded gameplay experience in the case of a video game, even though the frame rate seems high enough[note 2] to provide a smooth experience. Single-GPU configurations do not suffer from this defect and can in some cases output a subjectively smoother video compared to a multi-GPU setup using the same video card model.[1][2][3][4]
The effects of micro stuttering varies depending on the application and driver optimizations. It remains an issue with both nVidia- and AMD-based multi-card setups as of September 2011, however nVidia's SLI solution is less affected by the phenomenon for dual-GPU setups. Beyond dual-GPU setups, CrossFireX/SLI setups do not seem to be as affected by micro-stuttering; the frame rate variability in a three-way CrossFireX setup approaches the smoothness achieved by a single GPU

Toms did some tests here by example.

Tri-way GPU is the way to go if you suffer from micro-stuttering.
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post #43 of 63
Personally, my opinion, which you're free to disagree with. I think microstutter is GPU specific. I noticed microstutter on GTX 460 sli, 5870 crossfire, 6970 crossfire. GTX 580 sli, GTX 680 sli, and 7970 crossfire have no microsttuter.

I've seen it on some setups and not on others. I think it depends on the GPU architecture and drivers, so I think its just wrong to flat out say that all multi GPU setups have stutter. That is not true. Just IMO, if anyone doesn't like SLI more power to them thumb.gif
post #44 of 63
Quote:
Originally Posted by xoleras View Post

Personally, my opinion, which you're free to disagree with. I think microstutter is GPU specific. I noticed microstutter on GTX 460 sli, 5870 crossfire, 6970 crossfire. GTX 580 sli, GTX 680 sli, and 7970 crossfire have no microsttuter.
I've seen it on some setups and not on others. I think it depends on the GPU architecture and drivers, so I think its just wrong to flat out say that all multi GPU setups have stutter. That is not true. Just IMO, if anyone doesn't like SLI more power to them thumb.gif

All multi GPU set-up have micro-stutter. You will notice the stutter with low FPS, at high FPS the latency between every frame is minimal since every frame is rendered pretty fast which is not the case with poor FPS.

You have a lot of variability from the perception of the player to the hardware used. There is always stutter, you just can't always notice it thumb.gif
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post #45 of 63
If it can overclock like the 680s (i.e. more like the 6990 rather than the 590) than I'd buy one. It should be cheaper than 2x 680s and I only have to buy one block.
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post #46 of 63
Quote:
Originally Posted by Just a nickname View Post

All multi GPU set-up have micro-stutter. You will notice the stutter with low FPS, at high FPS the latency between every frame is minimal since every frame is rendered pretty fast which is not the case with poor FPS.
You have a lot of variability from the perception of the player to the hardware used. There is always stutter, you just can't always notice it thumb.gif

If you say so pal thumb.gif I've seen it on some and not at all on others. Feel free to think what you think though
post #47 of 63
Quote:
Originally Posted by xoleras View Post

If you say so pal thumb.gif I've seen it on some and not at all on others. Feel free to think what you think though

Have you checked the Toms review posted in my post above? I am not taking this from my hat lol. It's good if you don't notice the stutter Nvidia is doing well in multiple GPU solution.
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post #48 of 63
Quote:
Originally Posted by RobotDevil666 View Post

1) Scaling is the same , same SLI profile dependency as with two cards.
2 ) Scaling will be the same just the GPU's themselves might be slower , just like GTX590 even though it's technically 2x GF110 it does not ewual to 2x GTX580 because of lower clocks as for the first point the answer is no difference at all , same SLI profile dependency as with two cards.
3) Microstutter can only get worse with external SLI bridge.
I had couple of dual card of SLI configurations as well as dual GPU cards and in the end i ended up with a dual GPU , less noise , lower power draw , less heat , i for one am looking forwar to GTX690 it will make a worthwhile upgrade for me thumb.gif
As much as he lacks social graces he's right .........

Not sure if you actually read my comment cus it's all in there but ...okay.
post #49 of 63
Quote:
Originally Posted by Sxcerino View Post

If this card comes out let's say July, I doubt they'll release GK110 this year then.
Seems like they're going to save Gk110 like the 5 series is to the 4 series rather than a 685.

They still need the GK110 for their high-margin Tesla and Quadro. AMD currently has a chance to regain GPGUP marketshare.
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post #50 of 63
Quote:
Originally Posted by MoBeeJ View Post

^ No need to make the gtx 690 what consumers want, just what it takes to beat the competition. In this case if the specs are exactly what 2x 2g gtx 680s, nvidia won already. Duo to higher rated 7970's, it would be almost impossible to put 2 full 925mhz clocked tahiti gpus on one pcb with 2x 8pins.
Unless amd uses accelero as he cooler and go non-reference from day one.
In anycase, i cant help see the "turbo boost" thing making these cards oc-less.

Eyefinity says otherwise. Remember, the 7970 has a 50% larger framebuffer and 3GB is the sweet spot for gaming at 5760x1080. (or whatever that was...)

Remember the tests. The 680 is faster @ 1080p and such, but the 7970 is better for surround gaming. I'm pro-Nvidia... so I like to think... but I like the 7970 because AMD is really just stepping it up this time around... And I suffered an acute situational issue called the GSOD after dealing with the crap 10.1 through 10.3 CCC driver sets with my old 4770s back when. I'd still be using AMD most likely if that hadn't happened. frown.gif

Anywho. Nonetheless, the 7990 and 690 will be really nice in the end. I personally think that the 7990 will keep the crown for surround gaming simply because ATI really REALLY kicked it off with CrossfireX. Nvidia might have started it and CUDA might be easier to program with, but the GCN architecture that AMD employs happens to scale significantly better and it shows with previous generations AMD scales better with the higher tier cards, but Nvidia is getting better and is easier to work with. The GTX 680 isn't supposed to be the big card remember. smile.gif

/rant/rave

Annnnnd question for everyone else!

Honestly speaking, How well does the 7970 scale in CrossfireX? o.O Wasn't it like >90% most of the time?
Edited by Imglidinhere - 4/10/12 at 11:29am
     
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