2018 15" MacBook Pro (RP560X) [8th,6C,H] + RX 480 @ 32Gbps-TB3 (Sonnet Breakaway...
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2018 15" MacBook Pro (RP560X) [8th,6C,H] + RX 480 @ 32Gbps-TB3 (Sonnet Breakaway 350) + macOS 10.14 & Win10 [mac_editor]  


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Joined: 4 years ago

System Specifications

  • MacBook Pro 15" (2018)
  • CPU: 2.6 GHz Intel Core i7 (i7-8850H)
  • GPU(s): Intel UHD 630, Radeon Pro 560X
  • macOS 10.14.x Windows 10


eGPU Specifications

  • Sonnet Breakaway eGFX 350W -> 600W Corsair Upgraded
  • MSI Armor RX 480 OC 4G
  • Apple TB3 Cable



The installation process is usually straightforward if you use one of the solutions on this forum.

For macOS

Native compatibility: This eGPU setup has official support and does not require any additional software-work to get working. It is also easy to connect multiple such eGPUs.

Not all applications take advantage of external GPUs. For that, one can use set-eGPU.sh for High Sierra (10.13.4+) or use the Prefer External GPU option in Mojave.


For Windows 10

Drawback: Unable to use internal display, but performance gains worth it on external monitor(s).

The setup process is simple:

  • Download a copy of AMD drivers from bootcampdrivers.com.
  • Disconnect all internet connectivity and devices from Windows.
  • Use DDU to uninstall Apple-provided drivers. It is recommended to do so in Windows Safe Mode.
  • Boot back into Windows and install the downloaded drivers.
  • Once the Radeon Pro 560X is up and running, reboot into Windows with eGPU plugged in or hot-plug.
  • Ideally, the eGPU should begin functioning. If not, connect to the internet and let Windows set up the device.
  • You will lose your internal display, so only plug in an eGPU which has a monitor connected.



Some interesting benchmarks on macOS:

Valley, Radeon Pro 560X

Valley, RX 480

LuxMark, Radeon Pro 560X

LuxMark, RX 480



I only use the eGPU for testing purposes at this time, but my experience and benchmarks make the following clear:

  • Compute performance over 560X: ~2.4x.
  • Valley really does not do well on AMD cards, and both cards perform better on the bench in Windows.


Windows benchmarks will be added soon.

Insights Into macOS Video Editing Performance

Master Threads:
2014 15-inch MacBook Pro 750M
2018 15-inch MacBook Pro

2019 13" MacBook Pro [8th,4C,U] + RX Vega 64 @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.14.6 & Win10 [build link]