Penny pincher who needs SolidWorks: What model Shuttle XPC should I order?

I just came from this thread:

    https://forum.solidworks.com/community/faqs/blog/2018/01/05/what-specs-do-i-need-for-a-new-computer-to-use-solidworks

and have many doubts. It seems that the recommended brand/type in its class is Shuttle, specifically the XPC Cube? Is there some agreement so far? Does it have competitors in the SolidWorks market?

    http://global.shuttle.com/products/productsList?categoryId=19

I could not find a comparison table on their site.

Some of those come with the graphics hardware, GPU incorporated with the CPU. However, Nvidia Quadro seems to be the clear leader.

TIA

-Raymond

SolidworksGeneral