AMD or Nvidia, any real world comparisons?

Looking into buying a video card to use as a eGPU with a new MacBook Pro to run VW and Vision. For what I read in other posts there shouldn't be any difference, but has anyone done some actual tests with a Mac? AMD has always been the chipset choice of Apple, should this mean it should work better? I've found online quite a few comparisons on windows and some on Mac, all show the GTX 1080 Ti is 20% better/faster than the Vega 64... @JimW do either VW or Vision benefit fro

We take no advantage of either of these techs at the moment, and I do not see any immediate inclusion of them on the horizon in the next version or two. My crystal ball isn't perfect but If I had a whiff that we might be bringing them in soon I would absolutely let you know. For the GPU, we use OpenGL primarily, I do not believe we use OpenCL at all in Vectorworks or Vision. As for eGPUs, SO FAR all the results I hear of the most recent official inclusion of them on the mac side are