2016 13" MacBook Pro [6th,2C,U] + GTX 1080 Ti @ 32Gbps-TB3 (Sonnet Breakaway 35...
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2016 13" MacBook Pro [6th,2C,U] + GTX 1080 Ti @ 32Gbps-TB3 (Sonnet Breakaway 350) + macOS 10.13.5 & Win10 [MJCRO]  


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Joined: 3 years ago

Hi guys, long time lurker here on the forums.  Smile Here's my current eGPU set up:


- 13" MacBook Pro Touchbar  (Late 2016)
- Core i7 3.3 GHz (TurboBoost to 3.6)
- 16 GB 2133 MHz
- 512 GB SSD
- macOS 10.13.5 (rEFInd + apple_set_os_efi)
- Windows 10 Pro x64 (1803)



- Sonnet eGFX Breakaway Box 350 (I upgraded the power supply to a Corsair SF450 for the 2 x 6+2 pin connectors)
- 2.0M OWC TB3 Cable



- LG 34UC87-C 34" Curved Ultrawide, 3440x1440p, 5 ms (regular DP 1.2 cable to GPU)



- Satechi Type-C Multiport Adapter 4K w/Ethernet
- Logitech G Pro Mechanical Gaming Keyboard
- Logitech G903 Wireless Gaming Mouse


macOS (10.13.5):

- I use fr34k's macOS-eGPU.sh v0.2a script (SIP and Gatekeeper both disabled)
- Boot laptop, rEFInd boot menu, Plug eGPU TB3 cable into TB3 port closest to tab key, choose macOS)


Windows 10 (1803):

- Boot laptop with nothing plugged in the ports
- At the rEFInd boot menu, choose Windows (no apple_set_os_efi used)
- Once the spinning loading dots appear below the Windows 10 icon, plug the eGPU TB3 cable into the TB3 port closest to the tab key
- Once in the OS, plug in other accessories (in my case, I'm able to run an external TB3 USB hub containing HDMI/three USB3 ports/1Gbps Ethernet/USB-C power)
- NOTE: not possible unless PCI Express Root Port #12 is disabled in Device Manager (located under Device Manager > System devices)



Here's CPU-Z, GPU-Z, and CUDA-Z confirming 32Gbps (really 22Gbps, thanks Intel)...

Will post some real benchmarks when I have time.



Have been an avid custom PC builder for many years, but recently started using Macs for work and became hooked. eGPU's were always a fantasy for me, so I finally decided to make it real. Next upgrade is hopefully a Late 2017 15" MBP Touchbar with a 6C/12T i7 and 32 GB of memory.  😎 

2016 13" MacBook Pro [6th,2C,U] + GTX 1080 Ti @ 32Gbps-TB3 (Sonnet Breakaway 350) + macOS 10.13.5 & Win10 [build link]  

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