Assemble Razer Core X Chroma with the RX5700
Disable System Integrity Protection (SIP) in Recovery Mode (hold cmd-R while booting)
Install and run purge-wrangler and setup the eGPU (don't connect the eGPU yet! See note below)
settings: AMD, no legacy, no ti
reboot
Install and run purge-nvda and run eGPU Optimizations for AMD eGPUs
reboot
Connect eGPU with Macbook Pro via Thunderbolt cable and Adapter
eGPU is recognised but the external screen may stay black
If the external display stays black disconnect and reconnect the HDMI cable
voilà!
NOTE:
The system halts almost immediately when connecting the eGPU before running purge-wrangler!
See also this purge-wrangler issue on GitHub.

Benchmarks

Geekbench 5.2.0 Tryout for macOS x86 (64-bit)
OpenCL Score: 35550
Metal Score: 36870
Cinebench R20
OpenGL Score: 1008
This seems too low (even with the "prefer ecternal GPU" option was checked before launch)
Unigine Valley 1.0
Score: 1927
Basemark GPU 1.2 High settings
Metal Score: 5475
I couldn't run it on the external display so it ran at 3840x2160 on the Retina screen…

Out of curiosity I downloaded and played Alien Isolation and Mad Max from Steam:
with the graphics settings maxed out in both games (except anti aliasign in Mad Max) they run smooth like butter!
It’s incredible to play games like these on a 2012 Mac!

Comments

Works surprisingly well for gaming (see comment above)
I still have to get behind the low scores in the benchmarks
Hot plug and unplug works
purge-nvda quirks:
Sleep mode and brightness control of internal display don't work (uninstall purge-nvda to bring them back)
Internal display does not switch off in clamshell mode

This topic was modified 1 week ago

2012 15" MacBook Pro Retina (GT650M) [3rd,4C,Q] + RX 5700 XT @ 10Gbps-TB1>TB3 (Razer Core X Chroma) + macOS 10.15 [build link]

mr.ribeiro, nando4 and itsage liked

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