Acceleration using a graphics card

I have seen videos saying Fusion is accelerated a lot by the graphics card but on a test I am doing I cannot see any difference. I have OpenCL preferences which I can turn on and off but whatever I do performance is the same.

I have mainly tested on an nVidia 1060 graphics card on Windows 10. I am using Fusion 8.21. The composition is a bit of text animation with a picture which is used as a particle. It renders exactly the same with OpenCL on or off. What should I expect? Is everything accelerated or it is only some effects. Am I changing settings in the wrong place?

I also tested on an old-sih ATI card and I could not see any difference there either.

I looked through the manual, google and the Forum but could not see much information on what to expect.

There are some tools which use the OpenCL capabilities, not every one

Is there any way to tell which ones are accelerated and which are not? Obviously if someone is buying an expensive graphics card to enhance Fusion it would be nice to know what to expect. The on-line videos just say a GPU makes Fusion "blisteringly fast".

Is there any way to tell which ones are accelerated and which are not? Obviously if someone is buying an expensive graphics card to enhance Fusion it would be nice to know what to expect. The on-line videos just say a GPU makes Fusion "blisteringly fast".

Very few production tools use OpenCL. A bunch use OpenGL. I would choose a GPU accordingly.

I am asking what Fusion uses specifically and what performance improvements I should expect. On the first test I have I am getting no improvement whatsoever. Blackmagic says it supports OpenCL not OpenGL.

For Resolve and other programs I always prefer nVidia cards.

the Render3d node can use OpenGL

you see which nodes support OpenCL if the have a checkbox "use OpenCL":
eg.: FastNoise, VolumeFog, Defocus, AmbientOcclusion, VolumeMask

Thank you. That explains why there is no difference on this comp as I do not use any of those features. I will endeavour to try a few more 3D comps.

Sorry if I'm not posting this in the best place (haven't been here for a while)

I'm trying to find out if "FUSION STUDIO" uses a two GPU setup.
I have 2x GTX 780 SLI

Many thanks

Sorry if I'm not posting this in the best place (haven't been here for a while)

I'm trying to find out if "FUSION STUDIO" uses a two GPU setup.
I have 2x GTX 780 SLI

Many thanks

No, it does not.

Thanks for letting me know