In general, Vega cards are more difficult to setup than RX 580, but Vega runs much faster. From
Apple's own website:
AMD Radeon RX 470, RX 480, RX 570, RX 580, and Radeon Pro WX 7100
Recommended graphics cards include the
Sapphire Pulse series and the
AMD WX series.
AMD Radeon RX Vega 56
Recommended graphics cards include the
Sapphire Vega 56 and
XFX Vega 56.
AMD Radeon RX Vega 64, Vega Frontier Edition Air, and Radeon Pro WX 9100
Recommended graphics cards include the Sapphire Vega 64, XFX Vega 64,
AMD Frontier Edition air-cooled, and
AMD Radeon Pro WX 9100.