Just wondering if anyone could answer, with my setup as an iMac 14,2 can I upgrade to an rx 580 graphics card from a gtx 650 without changing my smbios? Now that 10.13.4 is out it looks like the sapphire pulse rx 580 works OOB. Just don't really care to change my smbios to get imessage working again though. Also looking at that card since it has native support as well as my gtx 650 has native support too. I like everything native. Thanks.
Read the forums here and you will see people are using RX580's and how to get them to work.
If you want native, you will need to buy a Mac.
With hackintosh there's no such thing as native - there's always slight tweaks to be done - e.g. you need Clover (which effectively emulates Apple EFI's) to boot macOS on a PC. e.g. you have to set the Model ID, e.g. you have to add an Audio driver, etc.
It's the same with AMD RX580. With 10.13.4, there's
better support in the OS than before.
You just need to remember to do some minimal settings enable the GPU. E.g.:
1. Disable CSM in the BIOS
2. Disable Intel GPU (initially)
3. Make the AMD GPU Primary GPU
4. connect the monitor to AMD GPU
...and then you'll be able to boot 10.13.4
You will get full acceleration and smooth GUI.
You can then tweak it to add audio over HDMI.
PS. Choosing the right manufacturer helps. Sapphire seems to more "compatible".
I'm using Sapphire Nitro+ RX580 8GB without any issues.
