What GPU are you running your cMP on Mojave?

[Squuiid]

So now it’s the RX 580, with my GT 120 safely in a drawer in case it all goes nipple skyward.

Same here. This seems to be the winning combo that everyone is going for.
Sapphire RX 580 being the best card for the cMP right now and the GT 120 the easiest to swap in when and if you need EFI.

 

[macagain]

Hopefully you get a good 7950. Quite a few XFX 7xxx that has highly customised PCB can't work on cMP.

Also, the others already told you that the latest 138.0.0.0.0 firmware will unlock the 5GT/s for your 7950.

Anyway, the Sapphire PULSE RX580 8GB is my choice.
View attachment 780018

Thankfully, I lucked out and did... I got an XFX Radeon 7950 Core Edition (single fan) (FX-795A-TNFC). Apparently it's supposed to be a 7950 reference card, albeit w/o the dual rom switch. I flashed it with the netkas described procedure, and it went w/o a hitch. And as you and @tsialex pointed out, with the 130.0.0.0.0 bootrom, it does runs at 5.0GT/s w/o needing the R17 resistor mod. So far, it's running w/o any glitches. If anyone needs details on flashing procedure, let me know... but I pretty much followed the standard procedure quite closely.

Happy days!

 

[ricosuave]

Does the Sapphire 7950 support metal? 1,2?

 

[davidlee90]

#53​

Does the Sapphire 7950 support metal? 1,2?

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Yes it does GPUFamily 1 on High Sierra and GPUFamily 2 while running Mojave Beta​