Hi there

If you are really work with precision like is AutoCAD and Revit then Quadro will be best,but if you work with 3D SW like is Poser,Blender and many other SW then any GPU will be good enough,unless you are planning to use yours GPU for rendering with CUDA apps like is IRAY,SuperFly and Cycles the you really want good GPU,something like 980Ti or 780 6GB,but yours current 580 should be enough as still offers great rendering performance in many applications although I would still upgrade for above GPU with at least 4GB and good enough CUDA cores

Hope this helps

Thanks,Jura