Apple recently released macos High Sierra 10.13.4 which includes OFFICIAL support for eGPUs!!
Provided your eGPU is from AMD.
Many people built eGPU rigs on 10.13.1, 2 and 3 and, with some workarounds, they were working great with Nvidia board. My iMac Pro was running great with 10.13.3 and an Nvidia 1080Ti in an AkiTio Node Pro eGPU enclosure.
But with 10.13.4 Apple blocks all Nvidia eGPUs and all TB1/TB2 connectivity, making Apple's version of eGPU effectively only available to recent Macs (must be Thuderbolt 3) and AMD GPUs.
Way to make me hate you even more Apple.
Fortunately, Fusion 360 runs on W10 and, of the two apps keeping me on MacOS, one was broken by High Sierra and isn't being updated.
So now all I need is a good, hopefully inexpensive, vector drawing package that's good for technical drawings (think of them as CAD drawings for business people). Years ago I used CorelDRAW for this.
At least now I can move my W10 installation from an external SSD to the zippy SSD in the iMac Pro.
Provided your eGPU is from AMD.
Many people built eGPU rigs on 10.13.1, 2 and 3 and, with some workarounds, they were working great with Nvidia board. My iMac Pro was running great with 10.13.3 and an Nvidia 1080Ti in an AkiTio Node Pro eGPU enclosure.
But with 10.13.4 Apple blocks all Nvidia eGPUs and all TB1/TB2 connectivity, making Apple's version of eGPU effectively only available to recent Macs (must be Thuderbolt 3) and AMD GPUs.
Way to make me hate you even more Apple.
Fortunately, Fusion 360 runs on W10 and, of the two apps keeping me on MacOS, one was broken by High Sierra and isn't being updated.
So now all I need is a good, hopefully inexpensive, vector drawing package that's good for technical drawings (think of them as CAD drawings for business people). Years ago I used CorelDRAW for this.
At least now I can move my W10 installation from an external SSD to the zippy SSD in the iMac Pro.