>>54128
>Is there even anything else other than NVidia? That is the only graphics cards producer I even know of
Yes, there is AMD (technically Radeon, purchased by AMD many years ago) and now Intel has started making them too, though it's been a relatively shy entry

>So I think I might just get a slightly older card and have a better price performance ratio
This is what I was talking about earlier. Those people are "gamers". They're not aware of APIs meant for other applications like CUDA or OpenCL, and they don't know newer generations bring support for new features. You want those features, trust me. I just went on wikipedia and looked it up and the 3000 and 4000 series support the same API versions. Which is good if you were to get a 3000 series for cheap now, but also bad if the 5000 comes out in a month and happens to bring support for some new breakthrough feature. Like I said I don't really keep up with this stuff anymore so I can't help you as much as I wish as I could. Idk how active OpenCL development is these days or what's going on in that area in general so I can't say if waiting for the 5000 series will be worth it