Radeon Compatibility Guide - ATI/AMD Graphics Cards

[TurbineSeaplane]

Theoretically it should be possible to mix even different models, but I think FCPX is a little picky. I think different 7970's might work, but I'd try to get identical cards, just to be sure.

Thx!

I may be forced to do a mix/match - If I do I will report back here on results.

 

[Celtan]

Thx!

I may be forced to do a mix/match - If I do I will report back here on results.

I have a silly question. If crossfire isn't supported does plugging an additional card in actually provide a performance boost if using one video output, or does the second card simply provide an additional monitor?

If a performance boost, with A9 280X's being available for around $150 second hand, why wouldn't I just get another one and plug it in? Seems like a great performance boost for not many dollars.

Thanks!

 

[Beg00d]

Hi Fl0r!an, now i'm using El Capitan with R7 360. Now I want to upgrade to Sierra!!! Is R7 360 working on Sierra???

 

[jazza]

Theoretically it should be possible to mix even different models, but I think FCPX is a little picky. I think different 7970's might work, but I'd try to get identical cards, just to be sure.

Hi Fl0r!an,
Cant you explain this post #1039

 

[thisisanid]

Hi,
I'm thinking about getting a RX470 for Mac OS, but the Polaris cards seems to need a "helper GPU" to avoid black screen issue.

My question is, is that possible to use an unsupported Nvidia pascal card as "helper GPU" for Polaris card?

 

[Fl0r!an]

@Celtan: No performance boost at all besides compute applications (OpenCL)

@Beg00d: Better don't upgrade, your GPU will boot to black screen unless using a helper GPU (e.g. iGPU).

@thisisanid: I'm not sure... Might be necessary to use a supported GPU, never tried that though.

@jazza: That's strange... OS X should usually pick up your GPU. Try booting without injection.

 

[Beg00d]

@Celtan: No performance boost at all besides compute applications (OpenCL)

@Beg00d: Better don't upgrade, your GPU will boot to black screen unless using a helper GPU (e.g. iGPU).

@thisisanid: I'm not sure... Might be necessary to use a supported GPU, never tried that though.

@jazza: That's strange... OS X should usually pick up your GPU. Try booting without injection.

I have iGPU Intel 530. Do I need to install another kext??? (Verde.kext)

 

[Fl0r!an]

I have iGPU Intel 530. Do I need to install another kext??? (Verde.kext)

You'll need to configure a different GPU (e.g. your HD 530) as primary graphics device, otherwise OS X will fail to initialize your Radeon R7 360. This means you'll have any pre-OS video output (e.g. UEFI splash screen / config, Clover boot manager) on your iGPU instead of your dGPU.

This is the only workaround so far.

 

[Beg00d]

do you know why R7 360 support very well on El Capitan but on Sierra it's like not support???

 

[Fl0r!an]

No. On Yosemite, all Radeon GPUs were able to init by themselves (except Cape Verde since ~10.10.3, which needed special power management settings).

El Capitan added the "boot to black screen" bug to 3rd gen GCN GPUs, and Sierra has extended this issue to 2nd gen (-> your GPU) and 4th gen GCN (-> Polaris) GPUs. We didn't understand why yet.

Long story short: Use the mentioned workaround, stay on El Capitan or get an Nvidia GPU, no more options than that.