With the official release of 10.15.1, Apple has finally enabled support for the current generation of Radeon GPUs using an external Thunderbolt 3 enclosure. With the reductions in overall power consumption and the ability to obtain better-than-Vega64 performance, this is an excellent development for extending the lifecycle of applicable platforms. Replacement of a Vega64 with an RX5700 was quick and the restart of the Mac mini immediately presented output to the monitor. Time will tell if the RX 5700-series GPUs will be a direct drop-in for the 2019 Mac Pro. Ideally, it’s going to be a noticeable performance improvement over the baseline “RX 580 Pro”.
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