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1. Re: nVidia GTX 680 4GB video card - Comments....
needles27 Mar 13, 2014 1:54 PM (in response to ALLENT)I'm really curious to hear your impressions. I have a 2009 MacPro and I upgraded from the stock card to the GTX285, and then more recently to the AMD 7950HD. I was thinking of moving back into the nVidia world since CUDA still seems to be a better solution than using OpenCL.
But, with Speedgrade and Direct Link, we still have the following limitations: (taken from Speedgrade Blog)
2. GPU acceleration for Direct Link
SpeedGrade CC 7.2 extends GPU acceleration to the Mac when using Direct Link.Enabled: NVIDIA OpenCL (Mac) GPU acceleration is now available for OS X 10.8.5 and higher. This provides better feedback and real-time grading update when applying color adjustments.
Enabled: AMD OpenCL (Win) GPU acceleration is now supported
Note: GPU acceleration for NVIDIA CUDA and AMD OpenCL are not currently available on the Mac platform.
I'm guessing this will change (hopefully soon) but it is a major roadbloack. I'm still a little confused about how enabling GPU aceleration for OpenCL on nVidia, but not CUDA is a big difference. I guess it hobbles the card's capabilities by not accessing the CUDA cores?
Please post your findings!
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2. Re: nVidia GTX 680 4GB video card - Comments....
ALLENT Mar 14, 2014 7:10 PM (in response to needles27)Got it install without a hitch... and loaded a small 4k project into SG, and the scopes aren't reading and everything is sluggish... surely I have got something WRONG... I will start my research now, please add any comments or thoughts you may have... things should be WAY BETTER THAN THIS!!!!
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3. Re: nVidia GTX 680 4GB video card - Comments....
needles27 Mar 14, 2014 8:41 PM (in response to ALLENT)Related to my post above, is this SG project a Direct Link or a fresh project from scratch? If it is a DL project, try it as a standalone and see if you notice a difference.
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4. Re: nVidia GTX 680 4GB video card - Comments....
ALLENT Mar 14, 2014 10:15 PM (in response to needles27)It was a DL project, I thought if you loaded a project from scratch into SG you could only have 1 video track???
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5. Re: nVidia GTX 680 4GB video card - Comments....
needles27 Mar 14, 2014 11:54 PM (in response to ALLENT)For the sake of testing, I would try it out on some of your footage by using a clean SG project and see how responsive it is. If you look at the info from Adobe I posted above, SG will NOT be GPU accelerated at all in most cases for a DL project on a mac- as of right now. That will change.
Test it again with a clean SG project and see how it functions. Worry about the multiple video tracks later.
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6. Re: nVidia GTX 680 4GB video card - Comments....
eartho Mar 15, 2014 4:34 PM (in response to ALLENT)Unfortunately, i did the same as you and spent $$$ on a new cuda card, replacing my 5770, thinking it would make everything better. It definitely did not. As others have mentioned though, this is mainly a problem with DL projects and not native SG timelines.

