Couldn't you theoretically?

[DoubleY]

So I was thinking, there are motherboards with 18 pci 16x slots. (http://www.trentonsystems.com/backplanes/bpx6806-pci-express-backplane)

And the Asus PQ321Q (https://www.asus.com/Monitors_Projectors/PQ321Q/) has two inputs. So could you run two, 4-way SLI configs to have 8 graphics cards powering that one monitor? Maybe I am wrong. But it was a thought

 

[nsyedhasan]

Theoretically should work but there would be latency. It basically a bridge for more slots like a Z87 which support 4 way SLI/XFire. Also can't you already run three of the monitors with 3 way SLI/Xfire?(By using display port splitters)

[Glenwing]

Even if multiple SLI configurations were possible, you wouldn't be able to power a single monitor with multiple cards. SLI makes multiple cards count as a single card basically, but two theoretical SLI setups would act as two seperate cards.

[Vitalius]

Even if multiple SLI configurations were possible, you wouldn't be able to power a single monitor with multiple cards. SLI makes multiple cards count as a single card basically, but two theoretical SLI setups would act as two seperate cards.

... 

2560x1080 anyone? (It's a monitor that is split into two monitors...)

[DoubleY]

... 

2560x1080 anyone? (It's a monitor that is split into two monitors...)

Like the one that Austin Evans has?

[Thermite]

I'm pretty sure that the drivers don't exist. And with AMD having so many issues now. I doubt they would ever make a driver for that. 

[Glenwing]

... 

2560x1080 anyone? (It's a monitor that is split into two monitors...)

I don't mean two monitors off one card, but the other way around- one monitor off two cards. It doesn't even really make sense.

[Vitalius]

I don't mean two monitors off one card, but the other way around- one monitor off two cards. It doesn't even really make sense.

But... Dual Play. Where 3D frames are alternated so that 2 people can use a single screen for 2 different things at 60FPS. 

If that were implemented on desktop, it'd be pretty cool. Very gimmicky, but pretty cool.

[Godlygamer23]

And on top of that, you already have too much latency from 4 way SLI. Having eight graphics cards in SLI(assuming it's possible) would only make it worse. And you wouldn't get any tangible benefits from the eight video cards anyways.

[Glenwing]

But... Dual Play. Where 3D frames are alternated so that 2 people can use a single screen for 2 different things at 60FPS. 

If that were implemented on desktop, it'd be pretty cool. Very gimmicky, but pretty cool.

I think that still runs off of one GPU though.

[Warcony]

In this case you'd have 2 sets of SLI cards that would appear as 2 cards due to SLI.  So I suppose if Nvidia came out with some software that allowed SLI sets to be bridged together then what you said could work.  It would be a terrible idea, it doesn't even make sense

[DoubleY]

And on top of that, you already have too much latency from 4 way SLI. Having eight graphics cards in SLI(assuming it's possible) would only make it worse. And you wouldn't get any tangible benefits from the eight video cards anyways.

Not 8-way SLI, 2 4-way SLI configs. 

[nsyedhasan]

Like the one that Austin Evans has?

Yeah but the monitor costs the same or more than 1440p monitors depends on what you like I guess.

[Vitalius]

I think that still runs off of one GPU though.

Not if it were separated by the monitor and not the system running the actual video (i.e. the console or desktop). Basically, take two inputs and mix the frames, alternating between them the way Dual Play is advertised to work. 

That'd be sweet. 

[Godlygamer23]

Not 8-way SLI, 2 4-way SLI configs. 

Even so, 4 way SLI benefits are very small and not worth the power draw or price.

[Vitalius]

Even so, 4 way SLI benefits are very small and not worth the power draw or price.

In all honesty, from the benchmarks I've actually seen from SLI/Crossfire, the gains are pretty comparable to 2-way SLI/Crossfire. Anywhere between 75-90% performance increase per GPU added. 

This was at 1080p of course, but still. 

[rentaspoon]

Yes! Especially if you have PIP. I use to use this with 4 pcs and 2 "moniters" so 4 ppl could play battlezone 2 in one tiny room.

[Glenwing]

Not if it were separated by the monitor and not the system running the actual video (i.e. the console or desktop). Basically, take two inputs and mix the frames, alternating between them the way Dual Play is advertised to work. 

That'd be sweet.

I see what you mean.

[IdeaStormer]

 

So I was thinking, there are motherboards with 18 pci 16x slots. (http://www.trentonsystems.com/backplanes/bpx6806-pci-express-backplane)

And the Asus PQ321Q (https://www.asus.com/Monitors_Projectors/PQ321Q/) has two inputs. So could you run two, 4-way SLI configs to have 8 graphics cards powering that one monitor? Maybe I am wrong. But it was a thought

 

 

 

Where's that theory? I don't see any theory.

[DoubleY]

Where's that theory? I don't see any theory.

[IdeaStormer]

 

Who ever told you or where did you read you can just extend a PCI bus and its all OK with every feature you assume will work?

[DoubleY]

Who ever told you or where did you read you can just extend a PCI bus and its all OK with every feature you assume will work?

Nobody, it was a THEORY. As in it might work. There is no need to insult others on the forum. 

[IdeaStormer]

Nobody, it was a THEORY. As in it might work. There is no need to insult others on the forum. 

 

Why is asking where the info came from insulting? :huh:

[DoubleY]

Why is asking where the info came from insulting? :huh:

I must have taken it wrong. Sorry

[rentaspoon]

Why is asking where the info came from insulting? :huh:

I think how you said it, though its more of an hypothetical idea which a lot of people struggle to think this way.