Radeon RX 5700 support with external GPU
Is there any information about when support for the new AMD cards will be added in macOS? I would be using it with an external GPU.
MacBook Pro with Touch Bar
Hi there csparks1919,
Although it has not yet been confirmed by apple that the new Radeon RX 5700 will be supported by MacOS, there have been some rumours of some drivers referencing the Navi Architecture (the architecture of the Radeon RX 5700) under the latest Mojave 10.14.6 update, although other rumours suggest that the Graphics Card will only be supported on 10.15 Catalina. So keep an eye out on the official Apple pages for eGPU Support and not so official sites such as TonyMacx86's list of supported GPUs.
Hope this helps. : )