[Success] Radeon RX 6800 XT - Big Sur

[wessberg]

@CaseySJ So Can I assume with a good probability that we will have full support of NAVI21 in 11.4? If it's so which the most compatible card at your experience among the RX 6800XT models?

I have a stock 6900 XT (so, not XTXH), and it is working beautifully with 11.4 beta 1.

 

[macdz]

If this is real, can you enlighten us a bit?
I think you would be the first one I see that has the new 6X00 running with Hardware Acceleration

I only followed the OpenCore Guide. I have a full AMD build so don't know how true it will be for an Intel build.

 

[macdz]

Anyone confirmed is 6800 6800xt 6900xt support 4k 120hz or 144hz in latest beta Big Sur? (assume display support 4k 144hz)

I have support for 2k 144hz so 4k 120z or 144hz should be supported.

 

[Azimuth1]

I have a stock 6900 XT (so, not XTXH), and it is working beautifully with 11.4 beta 1.

6900 XT is out of my budget but I have the doubt that 6800 XT cards that are fully compatible (having Device ID 0x73BF) are the ones with usb-c output which is the standard Radeon configuration for that model...

 

[Gaulomatic]

My XFX Merc 319 RX 6800 XT has Device ID 0x73BF, works great on macOS and the card itself next to silent when fully loaded. Recommended - if you can find one.

 

[JCSDANNY]

Hello, before I had a rx 580 working perfectly next to the igpu, but with the 6800 xt if I have the igpu enabled it loads the system and just when the first screen appears the monitor loses the 'image, however if I turn it off works fine but not I have igpu acceleration.
any suggestion

 

[tom111]

When using MacPro7,1 SMBIOS I get an error message that I have too much RAM, more than 768GB (I have 4x8GB) and that only one RAM module will be used. Using iMac19,1 for now.

 

[CaseySJ]

When using MacPro7,1 SMBIOS I get an error message that I have too much RAM, more than 768GB (I have 4x8GB) and that only one RAM module will be used. Using iMac19,1 for now.

Have a look at this:

Gigabyte B550 Vision D (Thunderbolt 3) + AMD Ryzen 7 3700X + AMD RX 5600 XT

Hey @CaseySJ, First off thanks for the amazing guide! Was actually running windows with the same system setup but when I saw 6800XT drivers were released I sold my 3080 and I'm now dual booting Windows/MacOS. Everything is working smoothly, but I am running into an issue with TB not having...

www.tonymacx86.com

 

[Ploddles]

Hello, before I had a rx 580 working perfectly next to the igpu, but with the 6800 xt if I have the igpu enabled it loads the system and just when the first screen appears the monitor loses the 'image, however if I turn it off works fine but not I have igpu acceleration.
any suggestion

Try adding agdpmod=pikera to your boot-args.

 

[JCSDANNY]

Try adding agdpmod=pikera to your boot-args.

I tried it, but the same thing happens, I don't notice anything