What GPU to get

Please make sure to read GPUs to Avoid First as there's important info there

So you just want a GPU recommendation? Well honestly in the current situation the only cards we'd recommend would be from AMD that are either Polaris(Rx 4xx, 5xx) or newer as GCN 3 and older can loose support at any time and the same applies for Nvidia's Kepler. Here are the cards we recommend and do remember that reference cards are generally the safest solution

Fanless GPUs(0 DB)

Unfortunalty the variety for fanless GPUs are quite small, while there are many GPUs with fan-stop these aren't perfect solutions. Models with no fan at all are limited to either GT 1030s which are unsupported past High Sierra or the GT 710 which could loose support some time soon

Fanless models:

  • GT 710(basically every model is single slot, half height and many are fanless)

Fan-Stop models(no fan spin under 50/60C generally):

Vega

Polaris

Single Slot GPUs

Polaris

Radeon pro Vega

Radeon Pro Polaris

Nvidia

  • GT 710(basically every model is single slot, half height and many are fanless)

Quadro

Half-height GPUs

Radeon Pro Polaris

Nvidia

  • GT 710(basically every model is single slot, half height and many are fanless)

Quadro

The Most Powerful GPUs

While it may seem obvious that the most powerful GPU would be the Radeon VII, do keep in mind drivers aren't as mature as Vega 10's drivers. For the best reliablity you'll want to either grab a Vega 10 series GPU(RX Vega 64) or wait for the issues with the MacPro 7,1 to be ironed out.

Cheapest Hackintosh GPUs

  • Litterally whatever iGPU came with your CPU

Overall Best Hackintosh GPUs

Polaris:

Vega:

Hopefully this little guide helps you, if you have anything else you'd like to add feel free to mention and I'll look into it

  • Your local neighbourhood Hackintosh Slav