System specs required for difficult and demanding processing

I apologize It’s an off topic question but needed to ask. People who are experienced in this type of work,and I didn’t really know which category. I have tried Snap toolbox and the process related to Coregistration and terrain correction took too long. my laptop specs are i7 7700hq 16 gb RAM and Nvidia GTX 1050ti 4gb Vram with a SATA 126 gb SSD.
I would buy a new desktop having a Ryzen 5 3600 6 cores and 16gb RAM, and I don’t know which graphics card (AMD or Nvidia GPUs) will perform faster with those progams such as Erdgas Imagine, SNAP, Envi 5. 1, ArcMap, Autocad, etc. Sorry for.