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Slow playback with GTX 980 GPU/GUI
I just finished a whole project in Davinci Resolve 11 Lite from edit to delivery using the ATI 5770 1 GB (4K RED in 1080 timeline), with decent enough playback to work comfortably. I apologize that I don’t have a proper readout of fps during that time but I can say I was working at 1/8 quality in about realtime. I thought, naturally, upgrading to the highly recommended GTX 980 with 4 times as much memory would help speed things up, but I can’t get it above 8fps during playback and that is even at 1/16th quality. I should also mention that no matter what decode/playback quality I choose, it seems to play at the same speed.
I am using it as a shared GPU/GUI as I unfortunately can’t add another GPU right now, but I didn’t think it would be worse than the 5770 which was doing the same exact work. Is there a config step I’m missing?
It’s also worth noting that I upgraded to OS X 10.10.2 from 10.9.5 in order to use the GTX 980.
Please let me know if there is any information I can provide to help make sense of this!
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Andrew Migliori
Partner, AnderImage
anderimage.com—
Mac Pro 2012 5,1
3.33 GHz 6-Core Intel Xeon
32 GB 1333 MHz DDR2 ECC
GeForce GTX 980 4 GB
OS 10.10.2 -
32 Replies
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There’s a specific driver for the 980 generation of cards. Make sure you’re using it
http://www.filmandtvcolor.com | colorist | Los Angeles, CA
Twitter: @4kfinish
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Thank you Paul!
I just confirmed that I do have the latest drivers from Nvidia and for CUDA, but that didn’t seem to change the performance. Strangely, Premiere CS6 recognizes the card and can take advantage of CUDA acceleration, but Resolve still seems to be at a near-standstill.
I’ve seen a lot of posts that use the Unigine Valley Benchmark tests—would that help to prove that my card is working as it should?
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Andrew Migliori
Partner, AnderImage
anderimage.com—
Mac Pro 2012 5,1
3.33 GHz 6-Core Intel Xeon
32 GB 1333 MHz DDR2 ECC
GeForce GTX 980 4 GB
OS 10.10.2 -
Well six core isn’t great but I think you should still be getting realtime in half good. Red 4k in a 1080 timeline. Just want to reiterate though. It’s not just the latest driver. Its a specific one for the 980 in yosemite. All the previous gen nNvidia cards use a different “latest driver”
http://www.filmandtvcolor.com | colorist | Los Angeles, CA
Twitter: @4kfinish
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Thanks for your input on the CPU—I plan on upgrading it down the line.
As for the 980 driver, what I have is the “QUADRO & GEFORCE MAC OS X DRIVER RELEASE 343.02.02f04” which is the latest Nvidia driver for Mac GeForce cards. Naturally, the GTX 980 is not in the supported products list since it is not available for Mac. Do you have any suggestions on getting a driver for Mac that includes the 980? It was my understanding that Yosemite supported it natively. I’d appreciate any help you could provide!
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Andrew Migliori
Partner, AnderImage
anderimage.com—
Mac Pro 2012 5,1
3.33 GHz 6-Core Intel Xeon
32 GB 1333 MHz DDR2 ECC
GeForce GTX 980 4 GB
OS 10.10.2 -
I don’t have the system in front of me, but on installing it gave me a warning to choose the 980 specific driver. You have cuda 7 installed? In yosemite you have WEB driver selected? In resolve you have auto or cuda selected? In resolve you have use gui for processing?
Start a new project and put a red file on a fast drive with no grade applied and set to playback half good and see what happenshttp://www.filmandtvcolor.com | colorist | Los Angeles, CA
Twitter: @4kfinish
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Strange, I never got that warning.
I can confirm having cuda 7 and web driver enabled.
I don’t seem to have the Resolve options you mentioned, probably because I’m using Lite.I tried starting a new project with a Red file playing from an internal RAID and it still stuttered at Half Good, and stuttered the same amount at 1/16. Something about the GPU seems to not be kicking in, but only specifically in Resolve! Premiere uses CUDA fine but in Davinci, it’s running worse than my old ATI 5770.
Is there anything else you can think of?
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Andrew Migliori
Partner, AnderImage
anderimage.com—
Mac Pro 2012 5,1
3.33 GHz 6-Core Intel Xeon
32 GB 1333 MHz DDR2 ECC
GeForce GTX 980 4 GB
OS 10.10.2 -
something is wrong. reinstall resolve/GTX/Cuda?
gtx is in PCIe slot 1 or 2? (16x)http://www.filmandtvcolor.com | colorist | Los Angeles, CA
Twitter: @4kfinish
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I will try all of the above, thanks!
I also used atMonitor to check my hardware usage and while playing back in Davinci, it was using 15% GPU and 75%+ CPU. Something is indeed wrong!—
Andrew Migliori
Partner, AnderImage
anderimage.com—
Mac Pro 2012 5,1
3.33 GHz 6-Core Intel Xeon
32 GB 1333 MHz DDR2 ECC
GeForce GTX 980 4 GB
OS 10.10.2 -
it is showing up in resolve though? download cuda-z for mac from sourceforge and see if you get data on all the pages, especially in performance/memory copy.
http://www.filmandtvcolor.com | colorist | Los Angeles, CA
Twitter: @4kfinish
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Yeah, it does show up in Resolve under GPU:
And I am getting data in cuda-z:
Does that mean anything to you? To me it seems like the GPU is entirely functional but there is something I’m missing with Resolve. Perhaps a re-install would do the trick?
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Andrew Migliori
Partner, AnderImage
anderimage.com—
Mac Pro 2012 5,1
3.33 GHz 6-Core Intel Xeon
32 GB 1333 MHz DDR2 ECC
GeForce GTX 980 4 GB
OS 10.10.2
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