Navi 23 AMD 6600 non-XT cards, Whatevergreen, NootRX and MacPro 7,1 SMBIOS

[jlrycm]

Hey there. there’s something that has been crossing my mind and wanted to ask here about experiences using Navi 23 non-XT cards, Whatevergreen, NootRX and MacPro 7,1 SMBIOS.

 

Does the NootRX kext support the MSI AMD Radeon RX 6600 ARMOR 8G- 8GB GDDR6 - PCI Express 4.0 Gaming Graphics Card (non-XT)? I'll appreciate your feedback and if the card is compatible, what settings, if any, should I update in the config file to make it work in Sequoia and Tahoe (I know it's a beta but I already installed it to test my custom mac). I read somewhere else that this kext support RDNA 2 dedicated cards but someone told me that mine isn't. However the chefkiss page lists navi 23 as compatible DGPU for this kext and this card I have is a AMD rDNA 2 dGPU.

I understand my card is supported oob in mac OS without whatevergreen kext if I use macpro 7,1 SMBIOS, so my other question is: if the NootRX kext supports my card, is there any benefit in using it versus not using it?

 

 @miliuco, @Cyberdevs, @eSaF, @verdazil, @chris1111 or @Max1974 your feedback is highly valuable and appreciated 

Edited June 19, 2025 by jlrycm

[verdazil]

Most AMD Radeon RX 6600 graphics cards work in the latest versions of macOS (including macOS Tahoe beta) out of the box (WhateverGreen.kext + agpmod=pikera bootarg only). Regardless of the SMBIOS version. However, RX  6600 from some brands may require the use of a set of kexts: WhateverGreen.kext + NootRX.kext.

Thus, if the default option does not work, you should test the option with an additional kext.

[jlrycm]

23 minutes ago, verdazil said:

Most AMD Radeon RX 6600 graphics cards work in the latest versions of macOS (including macOS Tahoe beta) out of the box (WhateverGreen.kext + agpmod=pikera bootarg only). Regardless of the SMBIOS version. However, RX  6600 from some brands may require the use of a set of kexts: WhateverGreen.kext + NootRX.kext.

Thus, if the default option does not work, you should test the option with an additional kext.

Thanks @verdazil I installed Tahoe and it’s running without Whatevergreen and the pikera boot arg as using these resulted in the installation not progressing. I do use Whatevergreen and the pikera boot arg in Sequoia. That’s the only difference I have between the EFI I use for Tahoe versus the EFI I use for Sequoia. I will try Sequoia without Whatevergreen + pikera boot arg to see if it works. I don’t want to use two different EFIs while testing Tahoe.

 

Haven’t tried in a while the NootRX kext. I tried it once more than a year ago and it didn’t work. I asked in another website and someone told me that NootRX would not work for my dgpu, but ChefKiss site now says the contrary, that it’s supported.

[MaLd0n]

NootRX kext is compatible with RX6600, RX6650, RX6700, RX6750, RX6800, RX6900, RX6950, etc XT or non XT.

You dont need Spoof. You dont need agdpmod=pikera. 

This kext don't rename some devices like HECI to IMEI on the fly like Whatevergreen made.

Some cards you need to remove -v to avoid black screen after boot(with NootRX or WhateverGreen). AsRock GPU its a good example.

NEVER use NootRX + WhateverGreen.

[jlrycm]

2 hours ago, MaLd0n said:

NootRX kext is compatible with RX6600, RX6650, RX6700, RX6750, RX6800, RX6900, RX6950, etc XT or non XT.

You dont need Spoof. You dont need agdpmod=pikera. 

This kext don't rename some devices like HECI to IMEI on the fly like Whatevergreen made.

Some cards you need to remove -v to avoid black screen after boot(with NootRX or WhateverGreen). AsRock GPU its a good example.

NEVER use NootRX + WhateverGreen.

Thanks @MaLd0n as always very informative and insightful. is it true that NootRX can give additional power management settings and tuning plus fixes some glitches that could appear if using the card oob or with Whatevergreen?

[Balamut]

On 6/19/2025 at 6:26 AM, MaLd0n said:

NootRX kext is compatible with RX6600, RX6650, RX6700, RX6750, RX6800, RX6900, RX6950, etc XT or non XT.

You dont need Spoof. You dont need agdpmod=pikera. 

This kext don't rename some devices like HECI to IMEI on the fly like Whatevergreen made.

Some cards you need to remove -v to avoid black screen after boot(with NootRX or WhateverGreen). AsRock GPU its a good example.

NEVER use NootRX + WhateverGreen.

 

I've heard of it, but never used it. Any advantages over the WhateverGreen? Sorry if the question is redundant and has been answered already.

 

[jlrycm]

10 hours ago, Balamut said:

 

I've heard of it, but never used it. Any advantages over the WhateverGreen? Sorry if the question is redundant and has been answered already.

 

@Balamut I started using NootRX in both Sequoia & Tahoe and so far I haven’t noticed any issues so my next step is do some benchmarking to see how many scores I get using whatevergreen (need to check if after Tahoe installation I can boot it with whatevergreen enabled), nootRX and not using any of them. After the benchmarking I’ll share the results here, but at the same time I think some of our IM community members most likely already tested these kexts and can attest which one contributes to better GPU performance.

Edited June 21, 2025 by jlrycm

[Max.1974]

On 6/19/2025 at 9:22 AM, jlrycm said:

Hey there. there’s something that has been crossing my mind and wanted to ask here about experiences using Navi 23 non-XT cards, Whatevergreen, NootRX and MacPro 7,1 SMBIOS.

 

Does the NootRX kext support the MSI AMD Radeon RX 6600 ARMOR 8G- 8GB GDDR6 - PCI Express 4.0 Gaming Graphics Card (non-XT)? I'll appreciate your feedback and if the card is compatible, what settings, if any, should I update in the config file to make it work in Sequoia and Tahoe (I know it's a beta but I already installed it to test my custom mac). I read somewhere else that this kext support RDNA 2 dedicated cards but someone told me that mine isn't. However the chefkiss page lists navi 23 as compatible DGPU for this kext and this card I have is a AMD rDNA 2 dGPU.

I understand my card is supported oob in mac OS without whatevergreen kext if I use macpro 7,1 SMBIOS, so my other question is: if the NootRX kext supports my card, is there any benefit in using it versus not using it?

 

 @miliuco, @Cyberdevs, @eSaF, @verdazil, @chris1111 or @Max1974 your feedback is highly valuable and appreciated 

 

Sorry late to see your message, so my card is not "native" need Spoof with SSDT Bridge BRG0 and only Works with WEG + agdpmod=pikera (piker alpha) my friend. I try use for test to said to feedback your question, but only can boot with WEG. I use once but Geekbench is down and not so good like im was expected. I just never use before. And new kexts exclusive for Tahoe come out releases here: 

 

https://dortania.github.io/builds/?product=DebugEnhancer&viewall=true 

 

Try using this version of Opencore: 

 

 

macOS XCODE5 Artifacts.zip

Spoiler

 

[jlrycm]

5 hours ago, Max.1974 said:

 

Sorry late to see your message, so my card is not "native" need Spoof with SSDT Bridge BRG0 and only Works with WEG + agdpmod=pikera (piker alpha) my friend. I try use for test to said to feedback your question, but only can boot with WEG. I use once but Geekbench is down and not so good like im was expected. I just never use before. And new kexts exclusive for Tahoe come out releases here: 

 

https://dortania.github.io/builds/?product=DebugEnhancer&viewall=true 

 

Try using this version of Opencore: 

 

 

macOS XCODE5 Artifacts.zip 20.79 MB · 0 downloads

  Reveal hidden contents

 

Hi @Max.1974 thanks for your feedback. Have you used Cinebench as an alternative to Geekbench?

 

What’s the difference with this version of OC you’re sharing here?

[Max.1974]

12 horas atrás, jlrycm disse:

Hi @Max.1974 thanks for your feedback. Have you used Cinebench as an alternative to Geekbench?

 

What’s the difference with this version of OC you’re sharing here?

 

Hi @jlrycm  This OpenCore setup is also prepared for macOS Tahoe, because until I can test the latest builds, the official releases and OCAT aren't working for me. I didn't run Cinebench because I forgot—haha! Maldon used to run it, and I think it's actually better that way!😆

Edited June 21, 2025 by Max.1974

[Sherlocks]

On 6/19/2025 at 10:26 PM, MaLd0n said:

NootRX kext is compatible with RX6600, RX6650, RX6700, RX6750, RX6800, RX6900, RX6950, etc XT or non XT.

You dont need Spoof. You dont need agdpmod=pikera. 

This kext don't rename some devices like HECI to IMEI on the fly like Whatevergreen made.

Some cards you need to remove -v to avoid black screen after boot(with NootRX or WhateverGreen). AsRock GPU its a good example.

NEVER use NootRX + WhateverGreen.

 

Thank you. I never use -v. Can i use -v? My rx6600 ia asus dual fan model.

[Max.1974]

Em 27/06/2025 às 04:01, Sherlocks disse:

 

Obrigado(a). Eu nunca uso -v. Posso usar -v? Meu modelo de ventilador duplo rx6600 ia asus.

Just try because my RX 6900 XT Aorus Gigabyte works with or without -v  

But keep -lilubetaall and -keepsyms=1 

[BALDY_MAN]

2 hours ago, Max.1974 said:

Just try because my RX 6900 XT Aorus Gigabyte works with or without -v  

But keep -lilubetaall and -keepsyms=1 

im using whatever green kext. without lilubetaall .but using  agdpmod=pikera. rx6800xt. just ran bench marks

 

Edited July 5, 2025 by BALDY_MAN

[BALDY_MAN]

just tried the Nootrx kext in the same fi that I used whatevergreen in

faster in Cinebench slower in Geekbench6

 

[Max.1974]

Here with NootRX is good to me, im not a gamer   😄

 

[BALDY_MAN]

its great that we choose. stunning work from the developers on both counts

[Max.1974]

3 minutes ago, BALDY_MAN said:

its great that we choose. stunning work from the developers on both counts

 

It's absolutely true my friend !! 

 

Here my processor score using Clover 5161 

 

[BALDY_MAN]

cool better than my score.