https://www.theverge.com/2018/10/30/18042572/apple-amd-vega-graphics-options-macbook-pro

Although today’s event was focused on Apple’s new MacBook Air, Apple also quietly announced an update to its MacBook Pro lineup, which will receive AMD’s Radeon Pro Vega graphics for the first time next month. Apple claims that these new graphics chips will result in a 60 percent boost to performance across video editing, 3D design, and rendering tasks.

AMD’s Vega graphics cards were first released for desktops last year and were a long-awaited attempt to take on its competitor Nvidia’s dominance in the high-end graphics card space. If you don’t want to buy one of the new MacBooks equipped with internal Vega graphics, you can also use an external GPU enclosure to connect a desktop AMD graphics card to your existing laptop. Apple has a list of compatible cards on its site, and it includes Vega models.