Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Tempting, but the power draw is YUGE

May be better off w/ multiple RX 480s for OpenCL compute.

I'm testing dual RX 480 working w/ D700s on nMP.
Super excited by the potential to run 128 compute units off a 12-core for an 8K narrative film post project.
(for OpenCL compute performance the 2GByte/sec bandwidth on TB2 has a 0~3% reduction vs TB3)
 
It was in general. macOS doesn't recognize GPU with dual chip setup. 2 R9 Fury X GPUs is the equivalent to the Pro Duo and will work as long as you can supply enough juice.

Thanks for clarifying.

While the automate-eGPU.sh script Goalque updated a few days ago does appear to provide full access to all 36 compute units on the RX 480, I suspect we'll see better performance when 10.12.4 is released w/ native Ellesmere support vs running Polaris 10 using the Polaris 11(Baffin) drivers currently baked into macOS.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.