Here is some more information on my graphics card. For GPU-Z, it detects CUDA.
One thing about my computer that I didn't mention, that it uses an onboard Intel HD Graphics 4000 for display purposes along with the Nvidia card. I don't know how Samsung has it setup, but I cannot disable the Intel graphics in BIOS and if I disable the Intel drivers, my screen goes blank. I don't think I can use only the Nvidia card.
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Ok, I think I figured it out. When I first was troubleshooting this, I looked at a list of supported video cards and the 650M was on that list, but I failed to see that the 650M is only supported on Mac OS, not PC. Ugh....
In After Effects CC (12.1), which we will be releasing soon, the GT 650M is added to the list of cards that After Effects will use on Windows for GPU acceleration of the ray-traced 3D renderer.
Thanks, Todd. Good to know! I'm looking forward to using the GPU ray-tracing.