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Expected rendering performance.
I am Beta “testing” the 8.2 v3 Resolve on Windows. I am curious what rendering performance to expect. I am referring to a final output and not a preview render, of course.
What performance you guys and girls get? Let’s have a hypothetical ProRes .mov with one node of primary color correction applied rendering as a ProRes. Assuming that both hard drives (source and render) are not a bottleneck factor what rendering speed in terms of fps should one expect in a system with 1 GPU (plus gui), system with 2 GPUs (plus gui)?
Thanks a lot in advance. -
22 Replies
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I’m getting around 35-50fps (DNxHD 1080p source and output) with different complexity grades on them. It’s basically up to 2x real time all the way. R3D Half Resolution Good quality debayer with grades on them I get above realtime without RedRocket. R3D debayering is done solely by the CPU if you don’t have RedRocket.
With only one GTX285 graphics card running both GPU+GUI I had some issues. The performance did go down after some work. I think the 1GB of memory ran out. After restartting Resolve it was up to speed again until it got slower again after some time. GPU memory usage was maxed out. So always go with 2 graphics card!
So I get enough performace out already. Next step for me would be to upgrade to GTX580. I don’t think you’d need multi-GPU solution when working with 1080p.
Windows Professional, GTX285 as GPU, GTX280 as GUI, 3930K @ 4.4GHz, 32GB RAM
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depends if you need realtime NR and how many nodes with it.
NR and multiple blur nodes if needed will bring your system down with
only 2 cards. This is expander and 3 beefy cards are good.It is like with cars, you can go 90 with most of them but 150 with only good setup.
Depends on your needs.
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Margus
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Thanks, Lauri
By 1 GPU (plus gui) I of course meant 1GPU for acceleration plus 1 for gui (two altogether), and by 2 GPUs (plus gui) I meant three altogether. Could you try running a ProRes render for me (more critical to me as I work mostly with FCP people rather than Avid people)? -
Thanks, Margus. I am aware of the NR performance hit. I am however not looking for a general philosophical info and race track metaphors. I really am looking to compare the real world performance (for a very specific reason) with relatively simple conditions (ie. 1080p ProRes in – 1080p ProRes Out, one nod, primary color correction only)
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As you know prorez depends mostly on your cpu compared to uncompressed
so you have to keep that in mind.—
Margus
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Really? So GPU acceleration id only used for grading process and not the render itself?
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Wait, what? Did I miss an announcement? Does Resolve on Windows now writes Prores?
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People say it does..!? Haven’t been able to test it yet, but if that’s true, it’s huge!
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I can confirm it does. And it is glorious. 😉
I get around 50fps render out to ProRes with my GTX 560Ti
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Michael, do you really mean 50fps render as in final output render? If so what are your system specs?
I am on GTX285 (GUI), plus 2x GTX580s (image processing, Xeon 5690, 24GB. Both hard drives are raid systems with sustained 350MBps. All I get is 15fps ProRes render.
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