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Sony Vegas Pro OpenCL encoding

Last response: in Applications
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January 1, 2013 3:20:25 AM

I have the AMD HD7970 graphics card with latest drivers. I can use Open CL accelerated previews in Vegas Pro 12, but the performance isn't good and I can't use it to encode videos.

The performance I think is still better than CPU only, I'm getting less than 10FPS for a plain H.264 1080P video on OpenCL. What bothers me the most is if I open up GPU-Z I see the GPU utilization never goes beyond 10%, but I can see the reactions and it is definately using it.

As for the encoding, if I click the Check GPU button it says OpenCL is available but there is no selection box for using GPU only or CPU only or both. And when I start the encoding GPU goes active but again, utilization is minimal, like less than 5% in fact.

I am running Windows 8 Enterprise, do you think that is the problem?


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also I don't know if related, GPU acceleration in Photoshop CS6 also isn't ideal. It's like 10FPS or something, even for small images. I remember it was smoother with my old GTX 260. but not sure if it was smoother when Ihad Windows 7.
January 9, 2013 2:57:48 AM

I reverted back to windows 7 and the problems are all gone, its a driver issues with windows 8 that has been present from the beginning.
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January 9, 2013 2:59:55 AM

Glad you got it resolved.
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January 12, 2013 5:36:35 PM

Win 7 x64 or x86?
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January 29, 2013 12:54:21 PM

7950 owner here, mine sits at idle when rendering, reinstalled GPU drivers and it worked. However it hasn't been working since, maybe there needs to be new 7950/70 Drivers for Sony Vegas 11.
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