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X299 Big Sur Support

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Aloha izo! Awesome news and glad to see you back on this thread! Do you think the 6900xt will come down in price by the end of the year? Dishing out $2000+ for a msrp $999 card is hard to swallow. My Radeon VII is still doing its job but getting new toys is always enticing. Also, if you have updated your EFI with the recent build of 6.9 opencore, would you mind sharing? Thank you.

I don't think its coming down in price unless the mining craze goes away. I had to pay $600 extra for the 6900xt because I couldn't find it at MSRP anywhere for weeks. Theres a chip shortage from TSMC, they are overwhelmed with Apple, AMD (GPUs, CPUs and console chips) so....they don't produce it fast enough and there is a higher demand.

The Radeon VII is going for $2000 or so on eBay so I figured it will buffer out the price so it comes out more than even.

I actually just want to play some video games at 4k 60fps Radeon VII was basically a 2080, the 6900XT is like a 3090 without ray tracing or dlss (well not proper implementation yet). Other than that, I don't mind the extra CUs for exporting using Metal in macOS. I'm sure I will be utilizing the extra GPU power for work.

I haven't updated OpenCore to the latest yet, so can't post it yet unfortunately.
 
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Aloha izo! Awesome news and glad to see you back on this thread! Do you think the 6900xt will come down in price by the end of the year? Dishing out $2000+ for a msrp $999 card is hard to swallow. My Radeon VII is still doing its job but getting new toys is always enticing. Also, if you have updated your EFI with the recent build of 6.9 opencore, would you mind sharing? Thank you.

You can see mine here
 
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Thanks, both; I could borrow a Radeon VII and everything went well. after replugging the Gigabyte 6800xt (basic edition), all became a mess. I’ll try with the 11.4 RC right away;)
After the 11.4 release, the 6800XT worked immediately!

Just to compare, on a pristine BigSur install, just with Luxmark v3 installed:
  • MSI Radeon VII (CPU+GPU) : 55618
  • Gigabyte 6800XT (CPU+GPU) : 61327
Many tests were successful with common video Apps (Final Cut / Adobe suite).
I can now move to Dortania’s post-install guide !

Thanks again to @egroys and @djlild7hina !
 
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After the 11.4 release, the 6800XT worked immediately!

Just to compare, on a pristine BigSur install, just with Luxmark v3 installed:
  • MSI Radeon VII (CPU+GPU) : 55618
  • Gigabyte 6800XT (CPU+GPU) : 61327
Many tests were successful with common video Apps (Final Cut / Adobe suite).
I can now move to Dortania’s post-install guide !

Thanks again to @egroys and @djlild7hina !
Hi @Jarjar, I have the same motherboard that you have and an AMD 6900xt (reference), I have seen your Luxmark score !! mine does not reach 58000, I bought a Sapphire 6900 XT Nitro + and the results are the same, GB5 OpenCL 111.000 - Metal 158000. Do you have any SSDT or any kext that increases the power? Thanks and best regards.
 
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Hi @Jarjar, I have the same motherboard that you have and an AMD 6900xt (reference), I have seen your Luxmark score !! mine does not reach 58000, I bought a Sapphire 6900 XT Nitro + and the results are the same, GB5 OpenCL 111.000 - Metal 158000. Do you have any SSDT or any kext that increases the power? Thanks and best regards.
Hi Woodcabin,

Just to clarify, the Luxmark scores represents CPU+GPU on Luxball.

On GB5, the scores are:
  • OpenCL: 111359
  • Metal: 173691
More comparison on Luxmark (GPU only):
  • Lobby: 10508
  • Neumann: 42186
  • Luxball: 55211

I'm currently working on the post-install process, I'm still on a fresh install: so no SDDTs more than those supplied in Dortania's 6.9 package (configured as MacPro 7,1).
 
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Hi Woodcabin,

Just to clarify, the Luxmark scores represents CPU+GPU on Luxball.

On GB5, the scores are:
  • OpenCL: 111359
  • Metal: 173691
More comparison on Luxmark (GPU only):
  • Lobby: 10508
  • Neumann: 42186
  • Luxball: 55211

I'm currently working on the post-install process, I'm still on a fresh install: so no SDDTs more than those supplied in Dortania's 6.9 package (configured as MacPro 7,1).
My fault, I did not read your previous post carefully enough, even so I am surprised that there is no difference between the reference 6900XT and the Sappire OC, it may be that PCIE3 extrangles the cards and does not allow them to reach their maximum performance, almost all the scores I see more than 175000 (metal) are on PCIE4 motherboards, thanks again for the clarification, greetings.
 
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My fault, I did not read your previous post carefully enough, even so I am surprised that there is no difference between the reference 6900XT and the Sappire OC, it may be that PCIE3 extrangles the cards and does not allow them to reach their maximum performance, almost all the scores I see more than 175000 (metal) are on PCIE4 motherboards, thanks again for the clarification, greetings.
That's even worse: I own a 6800XT (not a 6900XT). But I read somewhere that 6900XT cards were not fully supported yet.
 
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Hey friends
How are you ?
Excited towards the wwdc?

I wanted to find out with someone who has a rx 6800/6900 xt
Is it worth doing this upgrade
I edit video mostly in Final Cut Pro

Have you seen an improvement in timeline and export times?

For example - I previously purchased a Dual Radeon Vii (I added an image)
But I did not really see an improvement in performance

Today I am with rx vega 64 because I sold all Graphics Card I had (had a good opportunity to sell without loss :))


I would be happy for help in making the decision

Many thanks
 

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Joined
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It totally worth it, I have a 6800xt and Final loves it. It replaces a Radeon VII, totally satisfied!
 
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Screen Shot 2021-05-29 at 11.58.37 PM.png


Popped in the 6900XT with the waterblock and all works well.

However, is there a way to reset the System Overview/System Information so it shows the correct GPU?

Screen Shot 2021-05-29 at 11.12.01 PM.png


Also Metal score looks great so far.

Also it looks like -noweg works but it freezes after some use so I have to use WEG + pikera arg.
 
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