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CS5.5 Dual GPU Support

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Iain DonhamCS5.5 Dual GPU Support
by on Jan 12, 2012 at 5:59:41 pm

Hi all,

Simple question I hope. Does After Effects gain anything from having two GPUs, such as dual Quadro 4000s. I am also asking this question on the Premiere Pro forum as well, so any input in that area is greatly appreciated. Thanks!

Iain Donham


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Dave LaRondeRe: CS5.5 Dual GPU Support
by on Jan 12, 2012 at 6:12:05 pm

[Iain Donham] "Does After Effects gain anything from having two GPUs, such as dual Quadro 4000s."

No. AE gains nothing from even one Quadro 4000.
They're great for Premiere, but AE can't utilize their strengths.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Iain DonhamRe: CS5.5 Dual GPU Support
by on Jan 12, 2012 at 6:45:08 pm

[Dave LaRonde] "No. AE gains nothing from even one Quadro 4000."

What about Nvidia's claim that their cards used with OpenGL accelerates performance with AE CS5.5.

http://www.nvidia.com/object/adobe_AftereffectsCS5.html


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Kevin CampRe: CS5.5 Dual GPU Support
by on Jan 12, 2012 at 7:07:47 pm

the key phrase in nvidia's statement is it can help with 'opengl gpu accelerated effects', so that would be effects that are specifically designed to use the gpu (like knoll light factory and pixel blender effects).

it could also help with interacting with 3d scenes and with most blending modes in ae, but that's really just for previewing as you manipulate a layer in a comp or scrub the timeline, and wouldn't help in rendering... but many consumer grade cards could perform those accelerations about as well for a lot less money.

Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW


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Iain DonhamRe: CS5.5 Dual GPU Support
by on Jan 12, 2012 at 7:15:22 pm

Ok so After Effects out of the picture, does the MPE and OpenGL acceleration for Premiere benefit from a second card?


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Dave LaRondeRe: CS5.5 Dual GPU Support
by on Jan 12, 2012 at 7:18:16 pm

There are about three third-party plugins that benefit from it out of the hundreds available. You can only use the GPU-accelerated effects by themselves. If you tend to stack effects, as most people do, you run the almost-inevitable risk that one of those other effects will conflict with Open GL acceleration.

Cuda? Forget it in AE.

So yes, NVidia's technically correct: you can do it. But if you think you can do it and work effectively in AE, you're living in a dream world.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Iain DonhamRe: CS5.5 Dual GPU Support
by on Jan 12, 2012 at 7:24:00 pm

That makes sense, thanks for your input!


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Greg EstesRe: CS5.5 Dual GPU Support
by on Jan 15, 2012 at 11:14:50 pm

Some quick points:
- CS5.5 isn't multi-GPU in the sense that it takes advantage of two GPUs by spreading a task over both GPUs at the same time.
- CS5.5.2 does support an NVIDIA "Maximus" configuration with both a Quadro and a Tesla in the same workstation. The Premiere Pro CUDA work gets routed to the Tesla board, freeing up the Quadro for other stuff. The combination of a modest Quadro and Tesla C2075 (typical Maximus config) will cost less than a Quadro 6000 but offer about the same performance, so that may be interesting to high end users.
- Only a small portion of AE capabilities are GPU accelerated in CS5.5; that's correct. Same for Photoshop. Premiere Pro is the heavy hitter in terms of GPU acceleration today.


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Andrew SomersRe: CS5.5 Dual GPU Support
by on Jan 16, 2012 at 8:29:39 pm

The Gen Arts Sapphire suite (about 240 visual effects in the collection of plug ins) and the monsters suite, among others, are CUDA accelerated in After Effects. A CUDA card can be very useful as the CUDA gpu is used for accelerating rendering of these plug ins.

And nVidia's CUDA cards are also OpenGL capable, so there is still benefit in After Effects for the non-CUDA capable operations.


CUDA and OpenGL are separate functions, and I have not heard or personally found any incompatibilities between CUDA and OpenGL.

CUDA is a general purpose parallel computing architecture. OpenGL is a cross platform API for graphics.


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