Does the 980 support Split Frame Rendering?

[KarateHottie93]

I've been searching for an upgrade to my SLI 780 Ti's for a while now as 3gb just isn't enough for what I want to do anymore. My biggest issue though is very simple, yet dumb to most. I refuse to run a single card setup! I have always used SLI/CF and always will because I simply believe it looks cooler in my case. The very small, overestimated to hell amount of problems it actually gives you is an extremely fair trade off for the feeling I get everytime I look in my cases window.

 

With that being said I'm interested in two 980's. I can't afford two 980 Ti's and would only need it instead for the extra vram anyways.

 

With DirectX 12 supporting vram stacking, will the current Maxwell cards be able to use that feature? I was told on here that it doesn't support SFR which they said was required. I've looked everywhere and can't find anything saying it doesn't. I figured somebody on here has to know.

 

Also just wanted to add that yes, I know vram stacking will be up to the devs but I trust they will do it by the time my 4GB's are bottlenecking.

[Lays]

We have no idea, there hasn't been any concrete details on anything like this released yet.

[KarateHottie93]

We have no idea, there hasn't been any concrete details on anything like this released yet.

I'm talking about the card, it's self. I was told Nvida cards do not support SFR.

 

I find that hard to believe though as they even list SFR as a configuration on the SLI facts.

[Glenwing]

Yes. As long as it's technically possible over the SLI implementation NVIDIA currently uses (which it is) it's just a matter of software support.

http://docs.nvidia.com/gameworks/content/technologies/desktop/sli.htm

[ThE_MarD]

Heyyo,

Yes. As long as it's technically possible over the SLI implementation NVIDIA currently uses (which it is) it's just a matter of software support.

http://docs.nvidia.com/gameworks/content/technologies/desktop/sli.htm

Lol, epic old document. AFR of SFR... great idea but execution was poor due to limitations in DirectX and OpenGL...

Sadly? Can't test Multi-GPU in DirectX 12. NVIDIA drivers are still single-GPU only by the looks of it...

[Glenwing]

Heyyo,

Lol, epic old document. AFR of SFR... great idea but execution was poor due to limitations in DirectX and OpenGL...

Sadly? Can't test Multi-GPU in DirectX 12. NVIDIA drivers are still single-GPU only by the looks of it...

I don't think that document is very old actually. It's at least as recent as DX11, since they mention it in one of the later pages. There's also stuff about SHIELD in there as well.

[ThE_MarD]

Heyyo,

 

I don't think that document is very old actually. It's at least as recent as DX11, since they mention it in one of the later pages. There's also stuff about SHIELD in there as well.

Ah heh fair enough. It's just been years and years since I've heard of AFR of SFR. I remember I think it was the Geforce 7950 GX2 was the last GPU series to use it.

It probably didn't help that DirectX 9 was terrible for multi-GPU setups since it only allowed two back buffers for frames... probably why NVIDIA tried to mitigate the issue with AFR of SFR... but that didn't help too much.

This ancient review talks about that quite nicely and why two-way SLI was providing pretty much the same performance as Quad-SLI... the only reason quad-SLI existed back then was pretty much to run SLI-AA which didn't even work in all games due to some shaders incompatibility with MSAA...

http://www.bit-tech.net/hardware/graphics/2006/08/09/quad_sli_part_deux_diy_build/11

I'm still quite hopeful that DirectX 12's supposed native support for Multi-GPU setups will ring true and give us better performance gains than before.. heck, even if there isn't performance gains? I'd be nice to see my minimum framerate be a little higher.

NVIDIA 7950 GX2 Quad SLI with liquid cooling!

HNNNGGGGG!!! Dat be some serious Multi-GPU!