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[Success] Radeon RX 6800 XT - Big Sur

Joined
Dec 4, 2010
Messages
129
Motherboard
Probook 430 G3
CPU
i3
Graphics
HD 520
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
It was a 3 day ordeal getting it to work cause I had monitors it didn't like.... Right now I just want to use the card a little and then the tweeks will begin.

Just out of curiosity are you pushing 2 - 4K UHD monitors or one? I think this has something to do with the test results. Ive seen the test results sway from 168k-182k when running the tests so far... Once it get it going good I'll post some screens again.
I have just 1 27" 2560x1440 144hz Acer monitor.
 
Joined
Aug 17, 2020
Messages
113
Motherboard
Gigabyte Z490 Vision D
CPU
i9-10850K
Graphics
RX 6900 XT
It should be doing better. I am getting 192K+ on a reference 6900XT on ryzen using imacpro1,1 OC 0.6.6
I am pretty happy with it. I want to see your score when you fully unleash that thing.

Well I have attempted all I know how to do to "unleash" this thing and I just cant get it to go any further. I have tried SMBIOS with iMac20,2 iMac19,1 iMacPro1,1 MacPro7,1. I have turned the internal GPU off and on. I have the latest WhateverGreen, along with the following BootArgs: keepsyms=1 debug=0x100 agdpmod=pikera alcid=11 shikigva=80. Highest i see is 182,000 on OC 0.7.1

Don't think it's a heat issues as the CPU stays around 36C. Unfortunately I cant get HWMonitorSMC2 to show GPU temp though. I tried the "Use the IOKit monitoring for GPUs" and restarted/rebooted and installed Intel Power Gadget as well... temps work fine in windows though...

Open to any other suggestions.

Thanks
 
Joined
Dec 20, 2019
Messages
13
Motherboard
GIGABYTE Z390 Designare
CPU
i9-9900K
Graphics
AMD RX 6900 XT
Mac
  1. iMac
Well I have attempted all I know how to do to "unleash" this thing and I just cant get it to go any further. I have tried SMBIOS with iMac20,2 iMac19,1 iMacPro1,1 MacPro7,1. I have turned the internal GPU off and on. I have the latest WhateverGreen, along with the following BootArgs: keepsyms=1 debug=0x100 agdpmod=pikera alcid=11 shikigva=80. Highest i see is 182,000 on OC 0.7.1

Don't think it's a heat issues as the CPU stays around 36C. Unfortunately I cant get HWMonitorSMC2 to show GPU temp though. I tried the "Use the IOKit monitoring for GPUs" and restarted/rebooted and installed Intel Power Gadget as well... temps work fine in windows though...

Open to any other suggestions.

Thanks

Running Designare Z390 with 9900k, 6900 XT reference and seeing similar results around 160k mostly. Did see a 197k one time but that was some Geekbench silliness me thinks. Noticed that if doing some other task like scrolling in a browser window while the test is running, the score does seems to be higher. Could it be related to clock speeds increasing under certain loads. Also, the latest BigSur and Monterey updates show lower score than before so maybe driver updates?
 
Joined
May 2, 2012
Messages
18
Motherboard
Z390
CPU
i7-9700
Graphics
VEGA 56
Well I have attempted all I know how to do to "unleash" this thing and I just cant get it to go any further. I have tried SMBIOS with iMac20,2 iMac19,1 iMacPro1,1 MacPro7,1. I have turned the internal GPU off and on. I have the latest WhateverGreen, along with the following BootArgs: keepsyms=1 debug=0x100 agdpmod=pikera alcid=11 shikigva=80. Highest i see is 182,000 on OC 0.7.1

Don't think it's a heat issues as the CPU stays around 36C. Unfortunately I cant get HWMonitorSMC2 to show GPU temp though. I tried the "Use the IOKit monitoring for GPUs" and restarted/rebooted and installed Intel Power Gadget as well... temps work fine in windows though...

Open to any other suggestions.

Thanks
Try to use "iStat Menus" on last version.
 
Joined
Aug 17, 2020
Messages
113
Motherboard
Gigabyte Z490 Vision D
CPU
i9-10850K
Graphics
RX 6900 XT
Try to use "iStat Menus" on last version.
I was hopeful but no love here either.
Seems like the GPU data isn't even getting to the machine in MacOS.
*Turns out VirtualSMC doesn't have NAVI support for GPU Temps.
FakeSMC3 seems to offer this. I might try it out later today...

Screen Shot 2021-07-26 at 9.47.40 AM.png
 
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