Improvements yes. With the GM + HL23T's macOS TB3 firmware & RX VEGA 64 , I was able launch Hitman Metal API benchmark and it went through almost to the end. The app crashed immediately in my previous test. I don’t know if it’s due to firmware or GM build. Probably the latter.
Quite a lot of games already support Metal:
automate-eGPU EFI ● apple_set_os.efi
Mid 2015 15-inch MacBook Pro eGPU Master Thread
2018 13" MacBook Pro [8th,4C,U] + Radeon VII @ 32Gbps-TB3 (ASUS XG Station Pro) + Win10 1809 [build link]
This might probably be the case for my GPU as well, albeit an MSI Armor RX 480 4GB. @FricoRico's suggestion might actually work. I believe this is a single 8-pin card, however the VRAM is different.
I can confirm that flashing my XFX RX480 XXX OC Edition with AMD's reference RX480 bios works perfectly. I have acceleration under MacOS and Windows 10 using the Akitio Thunder 2. Do make sure you use a bios with the same VRAM manufacturer, for me it was Samsung.
How do you flashed you graphic card ? There is a link or video ?
Tks !
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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