macOS 12.3 Update Causes Problems for 5700/6800/6900 Graphics Cards

[Thireus]

This code replacement in plist worked wonders for my Z490/RX5700XT system.

Geekbench (metal) pops a score of 73783 to 77482... Is that on-par with what a 5700XT should be?

THANKS!

Yes. https://browser.geekbench.com/user/124666 cf compute section, Sapphire Nitro+ AMD Radeon RX 5700 XT slightly overclocked by default.

 

[YBuyAMac]

So out of the box, the 6600xt works with 12.3 (no need for config.plist change)?

yes. Worked straight out of the box.

 

[matreyia]

Be aware that if you're running a 6800/6900XT there are serious performance issues with 12.3, my geekbench score dropped by about half.

RX6800 slow in OS12.3 Beta

My previously speedy Gigabyte RX6800XT has taken a performance hit in the Beta of 12.3 Monterey? Lou

forums.macrumors.com

I can confirm this is also the case on my iMac 2020 27 inch 64gb RAM system with external AMD w6800 GPU. I cannot use the machine to edit videos unless I unplug the external GPU. Hopefully Apple will patch very soon.

 

[MysticalOS]

12.3.1 is out, and mentions controller breakage fix, but AMD issue? not a single mention, so I wouldn't hold breath.

And yes they definitely know about it, so if it's not fixed then it further lends to it being intentional. of course, there is still a tiny chance they fixed it silently without mentioning it so we'll see.

 

[tedyun]

12.3.1 is out, and mentions controller breakage fix, but AMD issue? not a single mention, so I wouldn't hold breath.

And yes they definitely know about it, so if it's not fixed then it further lends to it being intentional. of course, there is still a tiny chance they fixed it silently without mentioning it so we'll see.

Any brave souls willing to give the update a shot? I will do it, but I'm at work now, so it won't be for another 8 h or so.

If the 12.3.1 update disrupts our framebuffer injection fix, then I'll believe in the conspiracy theory that Apple intentionally sabotaged the OEM cards!

 

[garzov]

For me, 12.3.1 solve Radeon 5700 problem.
All works, without artifacts and geekbench is identical compared with 12.2.1
No Device Properties hack

iMacPro1,1 - Geekbench Browser

Benchmark results for an iMacPro1,1 with an AMD Ryzen 9 5900X processor.

browser.geekbench.com

iMacPro1,1 - Geekbench Browser

Benchmark results for an iMacPro1,1 with an AMD Ryzen 9 5900X processor.

browser.geekbench.com

 

[MysticalOS]

That's good news, I'll run some tests soon as well, I'm doing a full backup first because if there is one lesson, don't trust macOS updates. once i have a restore point I'll do update.

If they did fix it, and chose to be silent about it, that's still sus as hell. Still indicates it's more of a roll back than a bug fix.

 

[tedyun]

That's good news, I'll run some tests soon as well, I'm doing a full backup first because if there is one lesson, don't trust macOS updates. once i have a restore point I'll do update.

If they did fix it, and chose to be silent about it, that's still sus as hell. Still indicates it's more of a roll back than a bug fix.

I personally think that they were in a rush to line up the graphics drivers for the new Macs that they forgot to provide support for the alternative configs, like the OEM cards installed in the PCI slots or eGPU's. I think these setups with genuine Apple hardware are a pretty small population. As we figured out, the fix is relatively simple. I'll give them the benefit of the doubt here, but I understand if people believe there is something more nefarious at foot!

 

[Midphase]

I've been literally waiting for an official update before purchasing a 6900XT (6800XT would make more sense considering the MSRP difference, but in actuality they are pretty much the same price). Any brand recommendations?

 

[Kalypso478]

Confirmed. After the update to MacOS 12.3.1 no more properties injection of the graphic card necessary. Everything works as before.