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Why Sli is a lie. From the 8800's to the 980's. A paying customers account of constant problems.

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Ahhzz

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*sigh*
Nvidia 6800 SLI
Nvidia 9800GT SLI
AMD 6950 XFire

And then, a Radeon 290 4Gb, and actually using all of the devices I pay for....
 
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So for the past ten years you've been drinking the SLI Kool-Aid and all of a sudden NOW you notice it's not what it's cracked up to be? I have to wonder why you kept buying into it for so long when you knew by experience it wasn't worth it?

This is largely why multi GPU is still pushed so hard, because people are such suckers for it and seem to be in denial of it year after year, hoping it will get better instead of putting your foot down and demanding it get better via boycotting.

And AMD are just as bad. Now they are pushing Mantle as an API that can pool the VRAM of more than one GPU, but the reality is there are severe tradeoffs. It can't even be done via alternating frame, and only with certain objects. Read the fine print people.

I'm just saying, the more people that buy into the hype and put their dollars down without doing the research, the more we will see such blatant ripoffs. At best they show a handful of games that they give special dev coveted attention to at the launch of a new architecture, then proceed to fall apart at the driver end on down the road with most titles.

Part of the problem is, it's a blind promise. No one knows on down the road whom the devs will seek to endorse their games, or how much diligence will be given to the drivers, or even how hard a given game code will be to work with. There's just too many variables and too many unknowns to be putting much stock into it, regardless of how advanced each new architecture is.

The only real reason to go multi GPU is ultra high res, and with the current powerful single GPUs, that pretty much means not just beyond 1080p, but WELL beyond. Ultra high res setups are still a very small niche part of the market though. The main thing that keeps multi GPU going is the multitude whom buy into it at lower resolutions whom don't need to.

Hopefully we'll get to the point where there will be single GPU cards that support up to the highest resolutions on their own, but I have a feeling both camps will do what they can to keep that from happening, or make it so expensive it won't be a viable alternative for most. THAT'S what buying into multi GPU without needing to has done to gaming.
 
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peche

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Not sufficent for high res, high end gaming. Moe money moe problems etc. I see it as a form of poetry.
mmmm 1920x1280P...?
GTx 780ti ?
The money can also be a fact... im pretty happy with my current GTX 760 OC... not ultra resolution or settings on some games but... it is brave card
 

Frick

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mmmm 1920x1280P...?
GTx 780ti ?
The money can also be a fact... im pretty happy with my current GTX 760 OC... not ultra resolution or settings on some games but... it is brave card

1440p and up. I don't think 1080p is considered "high" resolution these days.
 

peche

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And AMD are just as bad. Now they are pushing Mantle as an API that can pool the VRAM of more than one GPU, but the reality is there are severe tradeoffs.
Might be a push to make multiple GPU purchases more palatable. If AMD's next enthusiast graphics card is limited to 4GB of vRAM (HBM), then it could run into problems when the PR machine runs headlong into reality. AMD's own guys are saying that 4GB is insufficient for 4K gaming with high game IQ, so in the eventuality that a single card bogs down in reviews and real-life gaming, they'll need a fall-back position- which is where unified memory fits in.
 
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As for 4k, its a cluster farce (look at the Scotsman not cursing!) for drivers and performance in general. I'm not moving to 4k until GM200 or 380X prove themselves. That's if I move at all.

Right. As much as people try to play it up, even this next gen will mostly be about ~1440p, especially on AMD's side (Because 4GB buffer). It's not going to be until we have (substantially, if you figure high-rez textures in some games, especially at high-rez) larger frame buffers and about 2x faster cards (than currently available) that it really starts to make sense. I guess a couple 12GB Titan-whatevers might make it 'feasible', but I don't exactly think think that's what most people will be buying...certainly not me. I see sli as an option to get that extra 'push' at currently playable-ish settings, not something I would want to have to depend on to get a higher resolution to be playable.

Stay at 1440p (which I think is the best compromise of both quality, cost, and future playability), or move to 4k, but realize scaling will be your new best friend, as we're only going to get 3/4 of the there this gen and you'll probably be sacrificing in-game quality to get there. It has always been, and will continue to be, something that will make sense when we hit 14/16nm and 2nd gen stacked memory.

My main open question is how will amd (380x) fare scaling up the ladder from 1440p->4k versus nvidia in a similar price/performance bracket (probably something like a 780 version of GM200...21 SMMs)? I think strangely-enough, it could be a reverse from what we currently see. AMD with more shaders and smaller buffer versus nvidia and it's slightly larger buffer and more 'optimized' config; AMD may excel at 1440p (with all options maxed out in games) and taper off quickly where-as GM200 may scale better (to something like 1800p) but never truly be targeted at having a strength at a certain resolution. This fares better for sli scaling actually having a more dramatic effect, but also conceivably it makes 380x and 1440p a great fit for probably a majority of people. We shall see how that pans out.

edit: and there's Human Smoke as usual...succinctly posting what I'm about to as I'm long-windily writing it. :)
 

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Dual card set ups are not for the faint hearted but my current 780ti sli set up works as I'd hoped.
I think the OP is s bit OTT. Sli does work and its not a lie. XDMA crossfire works well too but it is as already stated, game dependent.
As for 4k, its a cluster farce (look at the Scotsman not cursing!) for drivers and performance in general. I'm not moving to 4k until GM200 or 380X prove themselves. That's if I move at all.

OTT?
You did read the part where I said how Sli works wonderfully for some games right?

And works as you hoped? So no flashing shadows, textures, artifacting, bugs AT ALL?
Yea I'm not buying that at all.

Have you ever tried Sli with 3D?
That's a whole other can of worms right there also.

Nvidia has some new stuff coming out though from what I am reading, that may very well help the sli issues out a lot. Something about getting rid of the sli bridge.
The bridge it's self has been known to cause a lot of issues.
Fingers crossed.

I'm not SLI fan or user, also I'm part of the ones who think that it's better to have one powerful card!

I really wish they could just kind of merge two cards into one, instead of use sli at all..lol

@D007

Ironically, I tried SLI recently using two 8800 Ultras I got
Lol I would love to know how those perform on current games. I bet they still pack a punch. :)
 
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Yes because I have no experience with the issue and I haven't spent thousands of dollars on sli set ups.. What a childish remark..
One more or the permanent ignore list.

LOL Hey guys... I think ive just won the internet ;p
 

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I'm running a GTX 980 and if I need any more beef id buy another one in a heart beat.

I've mainly used Xfire over the years 4890s, 6950s, 7950s and 290s. They were all great setups. Maybe it was the games I was playing, but I never seemed to have any problems.

I think my old sli setups were a pair of GTX 9800s and 9600gt's none of those had issues either. Like I say must me the games I was playing at the time.

Because of my good luck in multiple cards I'm quite happy to team them up.
 
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I went from 570sli to 670sli, but now I use a single 980 and I won't going back to dual gpu ever again. It costs too much and has too many performance issues.
 
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Might be a push to make multiple GPU purchases more palatable. If AMD's next enthusiast graphics card is limited to 4GB of vRAM (HBM), then it could run into problems when the PR machine runs headlong into reality. AMD's own guys are saying that 4GB is insufficient for 4K gaming with high game IQ, so in the eventuality that a single card bogs down in reviews and real-life gaming, they'll need a fall-back position- which is where unified memory fits in.

If it weren't for the tradeoffs, that they seem to be a bit tight lipped about, that would be all good, but as I said, the reality is it won't even work with alternating frame profiling, which is what pretty much ALL multi GPU scaling works off of, and it only works with a few select types of games due to other limitations.
 
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Iv allways used sli or crossfire but these days I don't have any issues I use 2560x1440

But yes there's been a lot of issues in past, so much that 1 gpu Is more worth it.

But for now I haven't had problems other than tearing time to time with Vsync on
 
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I have gone from the old 8800 series to the current 9 series and have used SLI all the way.
I have been using SLI for pretty much as long as sli has existed and I have to say I am disappointed.
There are few games I have played where micro stutter, game breaking bugs, bad performance issues or some other issue, presents it's self in sli. Then it does not present it's self in one gpu mode.

I could bore you with tons of games and specific problems regarding each one but instead I'll just give a brief explanation of very recurring problems.
Blackscreens, Timeout detection, freezing, device hanging, micro stutter and major stutter, artifacting and other visual oddities.
These are issues in game I have had where even when it says sli is supported, it still has issues with it..

I have been trying and hoping for years for Nvidia to get their stuff right and apparently they just can't.
So I think I'm going to stop buying sli set ups anymore.

Really isn't much else to say.. It is what it is.
I have tried it, I have tested it for years and it's always been the same.
One gpu is great, two and you will have problems with a lot of games in one way or the other.
Problems you might not even notice if you always leave SLI on.
But disable it in the same game and all of a sudden you go "Holy crap, you mean the game isn't supposed to stutter like that"!?"

I'd bet the same can be said for ATI as well..

I wasted a lot of money over the years for hopes of what I was told was a quality product, with claims of 90% performance increases, which turned out to be 90% of stutter increase mostly..

Not to say some games don't perform wonderfully in sli but 50% doesn't cut it for me.
/Sad panda

What about the new dx12? it seems to have the same capabilities of mantle in terms of multi gpu configs

"DirectX 12 will make it easy to treat multiple GPUs as a single entity"

http://wccftech.com/directx-12-directx-11-100fps-difference-unreleased-gpu/
 

eidairaman1

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Honestly if youre not happy with anything

You Have Options

1.Run 1 card only.
2.Return the Parts or Sell them off.
3.Mail the parts To Nvidia with a Nastygram.
4.Switch to the other Gpu maker (GASP! AMD).
5.Take the Parts behind a barn and shoot them.
6.Attach an Airbag to them and watch it go boom.
7.Bake them in the Oven with @Toothless (Lol)
8.Allow @Toothless to Pulse Blast Them (Lol)
9.Put Parts in Microwave and watch the Plasma Storm.
10.Never use computers again.
 
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Honestly if youre not happy with anything

You Have Options

1.Run 1 card only.
2.Return the Parts or Sell them off.
3.Mail the parts To Nvidia with a Nastygram.
4.Switch to the other Gpu maker (GASP! AMD).
5.Take the Parts behind a barn and shoot them.
6.Attach an Airbag to them and watch it go boom.
7.Bake them in the Oven with @Toothless (Lol)
8.Allow @Toothless to Pulse Blast Them (Lol)
9.Put Parts in Microwave and watch the Plasma Storm.
10.Never use computers again.

I vote option 10 for him.

Honestly, I haven't had any issues with SLI nor Crossfire. I've had a couple SLI setups, and a 4870X2, and had issues with neither.
 

eidairaman1

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I vote option 10 for him.

Honestly, I haven't had any issues with SLI nor Crossfire. I've had a couple SLI setups, and a 4870X2, and had issues with neither.

Too many variables in configurations.
 

qubit

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Lol I would love to know how those perform on current games. I bet they still pack a punch. :)
I'm sorry matey, I've only just realized you posted this. Yes, it would be interesting to do some benchies with them.

I could compare the following cards perhaps:

8800 Ultra
8800 Ultra SLI
GTX 285 (200 series is the true successor to the 8800 series)
GTX 580
GTX 590 (dual GPU, internal SLI for those who aren't familiar with this model)
GTX 780 Ti (my current card)

I could also chuck in GTX 580 SLI, but I'm not sure if it would be worth it.

Oh, I guess I could also add the HD 2900 XT in the "Valliant Effort" category. I can be so cruel sometimes. :laugh:

For games I could use Trackmania United (DX9) since it's got such an easy and convenient benchmark mode, plus one other game like Metro 2033 in DX10 benchmark mode, perhaps.

It's finding the time though, so please don't hold your breath for it. :)
 
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I'm sorry matey, I've only just realized you posted this. Yes, it would be interesting to do some benchies with them.

I could compare the following cards perhaps:

8800 Ultra
8800 Ultra SLI
GTX 285 (200 series is the true successor the 8800 series)
GTX 580
GTX 590 (dual GPU, internal SLI for those who aren't familiar with this model)
GTX 780 Ti (my current card)

I could also chuck in GTX 580 SLI, but I'm not sure if it would be worth it.

Oh, I guess I could also add the HD 2900 XT in the "Valliant Effort" category. I can be so cruel sometimes. :laugh:

For games I could use Trackmania United (DX9) since it's got such an easy and convenient benchmark mode, plus one other game like Metro 2033 in DX10 benchmark mode, perhaps.

It's finding the time though, so please don't hold your breath for it. :)

It was almost 4 years ago when I posted it here in the forums my benchmark results, but you can see the results between GTX 280s in SLI vs a single GTX 570 - post is here. This should give you an idea of what you could expect from one of the older power house cards (GTX 280) in SLI back in the day.
 

Keullo-e

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With the multi GPU's I've had, I haven't got anything to complain. HD3870X2, 8800GTS SLI and HD5870 Crossfire. I guess it's called microstuttering because everybody can't even see it (like me) :laugh:
 
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People just bitch too much.

Ive had numerous SLI in the past and ive never had major problems, only 3 way sli + not scaling well.. thats to be expected

7950GX2 - Dual Gpu
8800 Ultra SLI
9800 GTX 3 Way SLI
9800 GX2 Quad SLI - Dual GPU
GTX 280 3 Way SLI - H20
GTS 450 SLI
GTX 580 SLI
GTX 590 Dual GPU
GTX 770 Lightning SLI - H20
GTX 980 SLI - H20

Just get a powerful single GPU and a gsync monitor and be done with it

I have a Asus Swift.... and i cant go back to standard monitors again :D
 
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Owned 8800GT SLi, GTX260 216sp SLI.. and I even defended that setup from way back through constant self hypnosis that everything was alright probably because of the time and money invested in it.

Singe powerfull GPU > SLi.
 

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O look another thread by D007 complaing about 'consumer rights'
wasn't he the guy that made a 30 something page thread spanning 3 forums about 4k over hdmi(which is technically impossible)
and eventually the problem was discovered to be a color compression option in his tv not enabled
yea ... nothing creditable here just flamebait
ill take anyone of his `problem` setups and fix it inside 30M
 
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O look another thread by D007 complaing about 'consumer rights'
wasn't he the guy that made a 30 something page thread spanning 3 forums about 4k over hdmi(which is technically impossible)
and eventually the problem was discovered to be a color compression option in his tv not enabled
yea ... nothing creditable here just flamebait
ill take anyone of his `problem` setups and fix it inside 30M
4k has been possible with hdmi since 2009... should probably catch up a little bit
 
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