So I got my new mini today and noticed something bizarre right off the bat when using the Vega 64 in the Core X eGPU. It is rather peculiar too. Transparencies exhibit bad color banding when hooked up to the eGPU via DisplayPort. As soon as I hook up via HDMI it is all smoothed out. If anyone has this setup, test it for yourself. Open up Safari and just look at the transparency of your wallpaper behind it. It won’t be smooth it will be pixelated. Hopefully someone can help me figure this out.