2 different Nvidia Cards without SLI

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Adeelk93

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Nov 21, 2015
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Hi there,

I work in 3D a lot. Recently, I purchased a GPU renderer for my program of choice, Cinema 4D. The name of the renderer is "Octane Render". Just if anyone was curious.

Anyway, currently I only have 1 GTX 660. When rendering on my new Renderer I can't use my computer at all as all the power is going to rendering.

So I was thinking of getting another GPU. Preferably I'd like to get a new GTX 980 and Octane Render would let me assign that as my rendering card and leave my 660 for general other use.

I was wondering if connecting two different cards to one PC was possible? Obviously, I wouldn't be able to SLI bridge them but could I use them both for what I need?

So if the 980 ran my renders while the 660 looked after my monitors, desktop and other programs like it usually would?

Thank you.
 
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RobCrezz
Looks like Octane can use multiple gpus no problem. So you can use both a new 980 and your 660 to render even faster.

https://home.otoy.com/render/octane-render/faqs/
Can Octane use multiple GPUS:

Yes! Octane Render completely relies on the GPU for rendering performance and scales extremely well. If your motherboard can accept more than one video card, adding additional video cards will greatly improve Octane’s rendering speed because Octane’s performance scales perfectly with the number of GPUs (e.g. rendering with four GTX Titans will be 4x faster than using only 1 GTX Titan), without the need for SLI. The cards can be different models, allowing GPUs from two completely different architectures to be used in a machine with multiple...
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sidewinder1911

sidewinder1911

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Oct 25, 2015
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From my experience, rendering isn't so much affected by the GPU as it is by the processor or memory. If you do a lot of this I suggest getting said components if yours are not sufficient/outdated.
 
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sidewinder1911

sidewinder1911

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If it is as you say, then you should look at a GPU with decent memory, preferably 3GB +. I'm not knowledgeable about rendering so that's as far as I can get you. The GTX 980 is a bad choice because the price to performance ratio is low. You should either spill the extra cash and get the 980 Ti or go for the 970.
About the SLI, though AMD card CrossFire supports 2+ different models, SLI does not, so you won't be getting the extra boost. But I believe you could still run both of them fine.
 
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RobCrezz

RobCrezz

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Looks like Octane can use multiple gpus no problem. So you can use both a new 980 and your 660 to render even faster.

https://home.otoy.com/render/octane-render/faqs/
Can Octane use multiple GPUS:

Yes! Octane Render completely relies on the GPU for rendering performance and scales extremely well. If your motherboard can accept more than one video card, adding additional video cards will greatly improve Octane’s rendering speed because Octane’s performance scales perfectly with the number of GPUs (e.g. rendering with four GTX Titans will be 4x faster than using only 1 GTX Titan), without the need for SLI. The cards can be different models, allowing GPUs from two completely different architectures to be used in a machine with multiple PCI-E slots (such as a GTX 560 in the primary slot and a GTX 780 in the second).

The cost of adding an additional NVIDIA GPU to your system is very low compared to the cost of a small renderfarm of 10 to 15 computers to get the same performance with a CPU based rendering solution.
 
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