External GPU Gaming on Mac: RX 580 on Macbook Installation and Tests | Apple Arcade Ep. 6
Macworld | Apr 17, 2018
Apple officially supports external GPUs now, so in this week's episode we show you how to hook one up to a 2017 MacBook Pro. We also tested performance using the benchmarking tool in Rise of the Tomb Raider.
It's a simple process that can greatly enhance your Mac's gaming performance, but it's saddled with limitations thanks to Apple's focus on AMD cards and the lack of support eGPUs in Windows through Boot Camp.