Although it's cool to have a powerful dedicated GPU, you have to weigh up the pros and cons.
You'll get the benefit of lightning fast stem analysis when the tracks load, but that's it. Having the NVIDIA GPU will not make any difference to the audio quality of stem separation.
If you're using shaders or doing video mixing of course then it will also help, but for stems it's just the analysis speed that benefits.
After doing a few tests on unsupported GPUs Ive found that most with 2gb+ memory will work flawlessly. Well from the couple of lappy's I've tried. The oldest a HP DV7 with a Radeon card. 4sec. Compute. A Samsung notebook 9 Radeon 540 graphics card 1-2 second compute. Mixing mostly Pop, HipHop,R&B classic R&B. Music like Rock and Classic rock, Older 50s and 60s like before the multi-track recording days take a bit longer. But definitely not an interference. I do get an error about the card not supporting something, but that error only shows once on first use.
As only NVIDIA GPUs are supported (old geforce gtx 745 is) that "error about the card not supporting something", may be about mathEngine ^^ Any recent enough (10 years old) correct CPU can compute stems flawlessly, other can compute stems slowly takes 1/5 track duration for a i5 2400s @ 2.5GHz, stems immediately usable as soon as track is loaded, only a lot of CPU power needed
As only NVIDIA GPUs are supported (old geforce gtx 745 is) that "error about the card not supporting something", may be about mathEngine ^^ Any recent enough (10 years old) correct CPU can compute stems flawlessly, other can compute stems slowly takes 1/5 track duration for a i5 2400s @ 2.5GHz, stems immediately usable as soon as track is loaded, only a lot of CPU power needed
Math engine is set to GPU. As I understand this setting is using the gpu only. And I havent had any problems.
I think there's a threshold where stems go from possibly annoyingly slow to "i don't even notice it anymore", and that's the NVIDIA MX150, a rather low end, modern, dedicated GPU you can find on a few mid to high end medium laptops. I think they start at 600-700€. That's all you need for stems to compute insanely fast without spending lots or having a chunky computer. Correct me if i'm wrong (i don't own a MX150 equipped laptop, i have a GTX 1050).