I suppose if all your monitors were plugged into one card it would leave the other one free for doing the accelerating*, but a card of that power should take the running of displays in its stride, so you wouldn't benefit much. VEGAS does not benefit from NVIDIA SLI or AMD CrossFire. Couldn't find any info about multiple GPU'S in Vegas.
#Opengl 4.6 support amd r9 380x full#
If I wanted to have smoother (maybe full hd playback?) will a second RX480 help me?. The OpenFX OpenCL/OpenGL bridge could very well be a bottleneck here.
#Opengl 4.6 support amd r9 380x install#
On my Nvidia install using 3rd party effects that use OpenGL GPU accel (NewBlue, Hitfilm) really get a performance hit on Nvidia. All that makes me wonder if Vegas is just not as optimal on Nvidia, like Luxmark used to be. You cannot compare 3.0 to 3.1 benchmark numbers. Luxmark 3.1 has the new OpenCL code tweaks and both Nvidia and AMD perform better and Nvidia competes with AMD where it previous did not. Those things made Nvidia underperform on that benchmark. Well, supposedly Nvidia informed the developer of some things where were not doing optimally. Luxmark is an often quoted OpenCL benchmark. The Luxmark benchamrk is one where you can see performance tweaks. Targeted to specific architectures and it has never been kept up to date for newer stuff, nor does it have "generic" to run on just anything. That is probably why Mainconcept AVC is the way it is. To get max performance you still probably have to tweak CL code for specific architectures. The promise of OpenCL is that you can write generic code and it works everywhere. That has closed up quite a bit recently in the drivers. While it probably can be said that Nvidias OpenCL implementation is not as good as AMD. The second item is the GPU option in the "render as" templates which controls the file encoder. The first item being video prefs GPU control which controls the video engine (OpenCL)(effects, composite, mask, crop). I once did timing tests on Mainconcept AVC and Sony AVC with CPU/CPU, CPU/GPU, GPU/CPU, GPU/GPU. I've had AMD 5850, 7950 and now Nvidia GTX 980 and Vegas 12/13. The Nvidia OpenCL implemention does not work as well for Vegas as it does for AMD. Norman, I'd love to know what the missing bit of that says! (I'm currently writing a GPU FAQ post)ĭamn disconnect between my brain and fingers. The Nvidia OpenCL implemention as well for Vegas as it does for AMD.
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