2 Replies Latest reply on Feb 24, 2017 9:20 PM by RoninEdits

    Lumetri Color panel slow when using Opencl with Radeon HD7850

    and3rsonsousa Level 1

      Hi guys,

      as I described in the title, When I use the lumetri color panel with the GPU (Radeon 7850) it gets so slow.

      I got a yellow line on the timeline that shows the GPU acceleration is being used,

      but the render takes about 3 minutes to complete and if I use only the CPU it renders in less then 2 minutes.

      All Lumetri effects are slow, and I didnt have this problem with the 2014 version of premiere. anyone knows how to fix it?

      My PC is => i7 3770 + 8GB RAM + Radeon HD7850


      PS: I have seen some others troubles with AMD cards here in the forum, but none of that solved my problem.

        • 1. Re: Lumetri Color panel slow when using Opencl with Radeon HD7850
          R Neil Haugen Adobe Community Professional & MVP

          The latest release build series ... the 2017 ... is (by user reports, particularly Bill Gehrke's testing) optimized for 3rd gen SSD drives, and also ... runs a heavier load on the computer than previous versions. So, yes ... it's requiring more capabilities in hardware than the previous versions.


          And that GPU, which would be involved with Lumetri ... first shipped in March of 2012. Nearly five years ago. It's not a particularly hot card by today's standards.


          Next, the yellow line on a timeline panel only shows that the expected load might slow the computer in playback, not that the GPU is working.


          So basically, you're getting better performance from the CPU alone than when the GPU is involved ... if it's possible, I'd look at getting a newer GPU though I'd go for a inexpensive one that's fairly recent, Nvidia if possible.


          Here on the Hardware forum, you'll get the best advice on whether to upgrade or just budget for a new rig.




          • 2. Re: Lumetri Color panel slow when using Opencl with Radeon HD7850
            RoninEdits Most Valuable Participant

            that radeon HD 7850 is a decent card, and should be an ok match for your cpu. i would expect the amd gpu to be much faster to render lumetri using the amd video card than cpu only. have you tried disabling the intel graphics for your i7 cpu? sometimes premiere tries to use that, and it seems like premiere 2017 is attempting to use the intel graphics more than older versions. the intel graphics will be much slower than the amd gpu.


            you could also download gpu-z  and watch the gpu load %, to see if its using the amd gpu and what % usage its at while premiere is trying to render a lumetri clip. you can also watch the gpu memory usage, if its maxed out it could hurt performance too. higher resolution timeline/media will use more memory on the gpu, so if that amd gpu only has around 2gb, it might be limiting if attempting anything past HD/1080p.


            i think there were some problems with some amd drivers too, you could try updating drivers or try some real old ones... if you didn't see this thread, there were a couple of different fixes that helped people getting premiere to use their amd video card. Adobe Premiere Pro CC 2015.3 with AMD graphic card

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