Using Dual RX 5700xt in Resolve?

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Stephen Fitzgerald

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Using Dual RX 5700xt in Resolve?

PostSat Nov 09, 2019 2:16 am

Wondering if I can run dual 5700xt in my setup, would it work properly in DR16? Any performance improvements in Fusion?

My CPU is Ryzen 3700x
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Carsten Sellberg

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Re: Using Dual RX 5700xt in Resolve?

PostSat Nov 09, 2019 1:02 pm

Hi.

I have NOT seen Black Magic recommend dual or triple GPU for some time. Instead have I seen rekommandation for a single TOP GPU.
Dual GPU don't make Resolve to run Generally faster. What Dual GPU does is, that it makes a few function as TNR Noice Reduction to run up to 30% faster.
Have you considered ONE Radion VII instead?

Regards Carsten.
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Jim Hall

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Re: Using Dual RX 5700xt in Resolve?

PostSat Nov 09, 2019 1:41 pm

Support for multiple GPUs is one of the primary features of having the Studio version. It was one of the top 3 reasons why I chose to upgrade to that version.

Have only had the Studio version for a few hours, so can't speak to any performance improvements.
Resolve Studio 16.1.1, Win10 Pro, AMD 2990WX (32C/64T), 128GB, RTX2080Ti x 2
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Michael_Andreas

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Re: Using Dual RX 5700xt in Resolve?

PostSat Nov 09, 2019 2:24 pm

Studio will do more things, not necessarily faster. Studio does enable GPU-accelerated decoding/encoding of certain codecs if you have a GPU that provides that.

But as Carsten says, multiple GPUs will not allow you to do more things, but will speed up some of the things it can do. What is your usage case that you think will benefit from multiple GPUs?
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Stephen Fitzgerald

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Re: Using Dual RX 5700xt in Resolve?

PostSun Nov 10, 2019 2:52 am

Well I thought I’d try and just use my 2nd pci a lot for another card, just to see what performance improvements I’d see in Resolve, especially on the Fusion tab, seems it takes A LOT to get certain effects loading smoothly. I went rx5700xt for the price value as the Radeon VII is more expensive and barely an improvement performance wise.

I’ll try a cheaper card first just to see if the system can utilize it, my only experience with two card in Resolve was with an external GPU, so now I’m just trying to see if anyone has insight into dual gpus in Resolve :)
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Carsten Sellberg

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Re: Using Dual RX 5700xt in Resolve?

PostSun Nov 10, 2019 10:02 am

Stephen Fitzgerald wrote: I’ll try a cheaper card first just to see if the system can utilize it


Hi.

In a DUAL GPU setup do Resolve use the lowers account of vRam. That is the reason that Black Magic only revomend DUAL setup with the same kind of GPU's.

But you also ask for performance improvements in Fusion?
I wonder. if you have the recommended amount of RAM in you system for Fusion?

Of course will a Ryzen CPU with more cores give you higher CPU performance.
If you have the PAID STUDIO version of Resolve, do I wonder if you will see any advantages by splitting you workflow up into two parts, and do your Fusion functions in the Standalone version of Fusion and the rest in Resolve. With a STUDIO version of Resolve, you will also be able to log in to the Standalone version of Fusion.

Regards Carsten.
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