@daniel01 I currently do well with a powerfull laptop (i7 4 core + 1050) work work and a less powerfull desktop just for rendering. Having a dedicated rendering pc even if it's slower already helps a lot. Currently I'm looking into buying an AMD ryzen 5 2600 and a 1080ti for it, to upgrade it.
@daniel01 Ubuntu has pretty good NVidia Support using proprietary drivers. the 970 should be supported just fine as it is fairly old. Just don't use debian on a laptop with an NVidia and expect working drivers. Desktop NVidia cards are much better supported on Linux then the mobile cards. The most important part is the number of CUDA cors and VRAM (for EVEE). Anything else is not as important.
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