With the release of macOS High Sierra 10.13.4 yesterday, eGPU support has officially come to any Mac with Thunderbolt 3 support:
- Late 2016 MacBook Pro and later1
- 2017 iMac or later
- iMac Pro
The following GPUs are officially supported:
- AMD Radeon RX 570
- AMD Radeon RX 580
- AMD Radeon Pro WX 7100
- AMD Radeon RX Vega 56
- AMD Radeon RX Vega 64
- AMD Radeon RX Vega Frontier Edition Air
- AMD Radeon Pro WX 9100
You’ll notice there are no Nvidia GPUs listed, but there are reports online of users getting them working.
If you want to stick to the official list, Apple also has several eGPU enclosures listed on that support page, noting that not every enclosure supports every video card. If you think you may upgrade down the road, keep that in mind.
- Apple points out that on 13-inch models, you’ll want to use the Thunderbolt 3 ports on the left side of the machine, as the ports on the right side don’t have the same throughput. ↩