Nvidia driver support is fine, generally speaking. It's just Apple choose not to bundle drivers OOTB in the OS, but it's a trivial install from Nvidia's website. You can drop a brand new 1080ti into an old Mac Pro today and it will work great. Hackintosh users have also taken advantage of this for ages.

In fact Nvidia cards are the only ones that are recommended for hackintoshes for OOB compatibility [1]. IME on Mac OS 10.12 getting a Nvidia GTX 1060 to behave properly has been much easier than a AMD RX 480.

[1] https://www.tonymacx86.com/buyersguide/march/2018/#Graphics_....

That's definitely not true since at least summer last year (release date of WhateverGreen [1]). The drivers for Nvidia cards are currently pretty bad and are only getting worse (they used to work acceptably ok on Sierra). For example, Pascal based Nvidia GPUs on High Sierra often get something like 50% performance compared to Windows and they also cause the system to stutter. There are also many other problems with using them. For instance, you cannot update the system (even small updates) until Nvidia releases new drivers which sometimes takes few days.

While with AMD, the drivers for RX460/470/480/560/570/580/Vega are already built-in and you only need to correctly inject them. You just need to use one kext (kind of a driver in Mac) called WhateverGreen (to be fully correct you also need Lilu, but you almost always have it anyway on your Hackintosh). It works without issues and is generally preferred among Hackintosh community.

Another thing is that tonymacx builds are generally bad if you want a stable and easy to build Hackintosh (at least as easy as it can get). They are being sponsored and their choice of hardware is strongly biased.

[1] https://github.com/vit9696/WhateverGreen

I hadn't heard that criticism of tonymacx86 before. Could I ask which site (or sites) you recommend as less biased / more straightforward builds than tonymacx?

Wow I had no idea that tool existed. Getting hardware acceleration working was the main reason I replaced my R9-390x with a GTX1070.