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[Success] Radeon RX 6800 XT - Big Sur

Joined
Nov 12, 2012
Messages
16
Motherboard
Asus X299 Sage 10G
CPU
i9-10980
Graphics
RX 6900 XT
@zappy39 What's your Geekbench Metal Score? I am a bit disappointed compared to other users.
 
Joined
Aug 24, 2015
Messages
26
Motherboard
Asus Z490 TUF (WiFi)
CPU
i9-10850K
Graphics
RX 6900 XT
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
I don't see any AGPM section below the framebuffer section in the ioreg. Does it need to be injected? Or something changed with new Navi cards on macOS? 6900XT - 73BF MacPro7,1 SMBios: works with weg + pikera or also works with w/o weg.
 
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Joined
May 29, 2012
Messages
779
Motherboard
Gigabyte Z390 Gaming X
CPU
i9-9900K
Graphics
6900XT
Mac
  1. iMac
Classic Mac
  1. LC
  2. Power Mac
  3. PowerBook
Mobile Phone
  1. iOS
hi jan2ooo my Geekbench = OpenCL 126381 and Metal = 148506

Hi guys,

I wouldn't worry too much about it. I say this as a paying GB5 user, and after using it for a while I don't think the results are very consistent or reliable. Since the tests are so quick, it's useful if you're playing around with the PPTs or overclocking because the scores are all relative to your baseline, but for comparing to other's in their database, I don't really think it's useful.

I don't know what is going on with these 73AF cards either. My scores are similar to yours. And when I boot over to the Windows side, they are higher. Interestingly, when I fire up Parallels on my MacOS (Windows 11), then run GB5, my scores get better.

There are other benchmarking programs that are more consistent, but they don't have the same type of database that GB5 does. Unigene Heaven is pretty good.

Ted


Metal - with Parallels running:
Metal - Parallels.jpg

OpenCL - with Parallels running:
OpenCL - Parallels.jpg

Metal - normal
Metal.jpg


OpenCL - normal
OpenCL.jpg
 
Last edited:
Joined
Mar 7, 2011
Messages
250
Motherboard
Asus TUF Z690 Plus D4
CPU
i9-12900K
Graphics
RX 6900 XT (spoofed)
Mobile Phone
  1. Android
  2. iOS
Here some more result from unigine heaven

FPS:
74.8
Score:
1883
Min FPS:
11.2
Max FPS:
148.8
Platform: Darwin 21.3.0 x86_64
CPU model: 11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz (3503MHz) x16
GPU model: Radeon RX 6900 XT (XTXH) (16384MB) x1


Render: OpenGL
Mode: 3840x2160 fullscreen
Preset Custom
Quality Ultra
Tessellation: Extreme
 
Joined
May 29, 2012
Messages
779
Motherboard
Gigabyte Z390 Gaming X
CPU
i9-9900K
Graphics
6900XT
Mac
  1. iMac
Classic Mac
  1. LC
  2. Power Mac
  3. PowerBook
Mobile Phone
  1. iOS
Here some more result from unigine heaven

FPS:
74.8
Score:
1883
Min FPS:
11.2
Max FPS:
148.8
Platform: Darwin 21.3.0 x86_64
CPU model: 11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz (3503MHz) x16
GPU model: Radeon RX 6900 XT (XTXH) (16384MB) x1


Render: OpenGL
Mode: 3840x2160 fullscreen
Preset Custom
Quality Ultra
Tessellation: Extreme

The true advantage of this card is that you can overclock it, but to do so, it's a fairly involve procedure of going into Windows and using a 3rd party program to generate a new PPT that you have to flash into one of the BIOS slots. In addition, to really overclock it, they say to go to liquid cooling. I'm not sure I need to play with it yet. Over on the Windows side, the stock card handles every game I throw at it. I'm not on the cutting edge of gaming, so I'm quite happy with the performance.

This is just speculation on my part, but I believe that with Big Sur, Apple might be throttling the graphics cards so that they can control the power consumption in the iMacs, where these cards will be found. They probably don't want users complaining about the heat, or maybe because the card is so close to the monitor, they want to control the amount of heat so that it doesn't damage the monitor. (Edit: scratch that! I see that the 6900's are for the Mac Pros. I'll take off my tin-foil hat ... for now...). It's either that or there is some inefficiency with the MacOS, the AMD Radeon drivers are tweaked for maximum operation in Windows, or a combination of all these factors. Bottom line is that I have this card for gaming, and most of my GPU-intensive gaming is over on my Windows boot. So I don't really worry that much about the benchmarks on the Mac side.
 
Last edited:
Joined
Nov 12, 2012
Messages
16
Motherboard
Asus X299 Sage 10G
CPU
i9-10980
Graphics
RX 6900 XT
Render: OpenGL

Mode: 3840x2160 fullscreen

Preset Custom

Quality Ultra

Tessellation: Extreme
Could you list all your settings (Anti Aliasing for example)?
 
Joined
Jan 31, 2022
Messages
10
Motherboard
Gigabyte X570 AORUS ULTRA
CPU
Ryzen 9 5950X
Graphics
RX 6900 XT
Help me set up everything I tried, the 6900xt card does not work well

4534.png

43534.png

4535.png
4543.png
66435.png
3543.png





SSDT
This is what I got, I don't know if it's correct or not.

DefinitionBlock ("", "SSDT", 2, "ACDT", "BRG0", 0x00000000)
{
External (_SB_.PCI0.GPP8.SWUS.SWDS, DeviceObj)

Scope (\_SB.PCI0.GPP8.SWUS.SWDS)
{
Device (BRG0)
{
Name (_ADR, Zero) // _ADR: Address
Device (GFX0)
{
Name (_ADR, Zero) // _ADR: Address
}
}
}
}
 

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Joined
Dec 20, 2019
Messages
20
Motherboard
GIGABYTE Z390 Designare
CPU
i9-9900K
Graphics
AMD RX 6900 XT
Mac
  1. iMac
Noticed you're using 12.3 beta. For me, the latest beta of 12.3, my GB scores took a huge dive, less than half of what they were before. Did you try on 12.2?
 
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