MP All Models AMD Radeon RX 6800 XT / 6900 XT for macOS?

[diamond.g]

Best to check on RS forum before selling you card, just to be 100% sure

With the prices I am seeing non-reference 6700XT's going for they could stand to make some money for sure.

 

[skippermonkey]

If the drivers are in 11.4 I would imagine the MPX module is not far behind. Why would Apple bother writing drivers only to support hackintosh's and 3rd party gpu in external enclosures and Mac Pros.

It seems to me Apple always do things when they have a product to show for it, so if the software for a 6800/6900 gpu is getting ready some hardware has to be pushing its development.

End of this year seems quite pessimistic, I'd guess (and hope) more around June/July near WWDC.

I can buy a 6900XT now but I would much rather have a MPX module to replace my 580X...

That'd be great – apart from the huge margin Apple will add for the metal case and the 'MPX' logo. I'd happily buy one (or two) if they weren't so hugely overpriced compared to the base GPU.

 

[twentyonekoalas]

Was able to get the 6900XT up and running on bootcamp with Bootcampdrivers. I can't seem to enable every card at the same time without the system freaking out. Not sure if anyone has a solution to get them all working together?

The 6900XT also works through eGPU (how I intend to use with the Mac Pro).

 

[rondocap]

Was able to get the 6900XT up and running on bootcamp with Bootcampdrivers. I can't seem to enable every card at the same time without the system freaking out. Not sure if anyone has a solution to get them all working together?

The 6900XT also works through eGPU (how I intend to use with the Mac Pro).
View attachment 1773976

I used the bootcamp drivers too, try to switch between blue and red to see if one works better, got 2 MPX Modules working with the 6900xt internally. I can adjust settings for the 6900xt but not the MPX modules of course.

 

[twentyonekoalas]

I used the bootcamp drivers too, try to switch between blue and red to see if one works better, got 2 MPX Modules working with the 6900xt internally. I can adjust settings for the 6900xt but not the MPX modules of course.

Thank you. I reinstalled the drivers again and now everything works in harmony. Ended up leaving the 6900xt, w5700x, and Radeon Vega Pro II Duo internally and having my OWC nvme in the egpu. The airflow through the Mac Pro is top notch.

Also appreciate you making that upgrade video @rondocap . Might try to upgrade the CPU myself next

 

[rondocap]

Thank you. I reinstalled the drivers again and now everything works in harmony. Ended up leaving the 6900xt, w5700x, and Radeon Vega Pro II Duo internally and having my OWC nvme in the egpu. The airflow through the Mac Pro is top notch.

Also appreciate you making that upgrade video @rondocap . Might try to upgrade the CPU myself next

Glad you liked it! I am very glad I did, I've seen those 24 cores light up to max on more than one occasion, especially with raw and pro res footage. And super stable

How are you liking the Pro II Duo vs the 6900 XT? Right now I have the 6900 XT and 2 W5700X, the single 6900XT seems to be either close to the 2 GPUs or beats it in certain tasks - I am sure with more optimizations it will be great.

What do you primarily use the GPUs for? I use for FCPX and Resolve, so may be different

Only drawback of running the 2 W5700x and the 6900xt is that it leaves no pcie slots for nvme drives, ha.

 

[flowrider]

This damn miner caused shortage is terrible? I want an RX6800XT. I set a goal not to spend more than $1500. for the card. I need the USB-C output. I've been shopping for a couple weeks now, and finally settled on a new RX6800 Vanilla card I found new on eBay. Approximately $250 to $300 less than the XT. It's a reference model. Should have it Tuesday.

 

[diamond.g]

This damn miner caused shortage is terrible? I want an RX6800XT. I set a goal not to spend more than $1500. for the card. I need the USB-C output. I've been shopping for a couple weeks now, and finally settled on a new RX6800 Vanilla card I found new on eBay. Approximately $250 to $300 less than the XT. It's a reference model. Should have it Tuesday.

The reference cards are getting harder to find, and as far as I can tell they are the only ones coming with the USB-C port.

 

[flowrider]

^^^^The card I really wanted was the Aorus RX6800XT Master Type C. It's listed on Gigabyte's site, but I have yet to see one at a reseller. There is a few others with UPS-C, but most have another DP.

Lou

​

 

[rondocap]

I got the reference 6800xt for 1200 and 6900xt for 1600

can confirm usb c on it, works with an LG 5k monitor in both Mac OS and boot camp too

 

[flowrider]

^^^^WOW - I wish I had seen those prices?

Are you using a USB-C cable or a TB cable?

Lou

 

[DFP1989]

Aorus RX6800XT Master Type C

I don’t reckon this card would have fit at 324mm.

I bought a 330mm 6800 XT without thinking and it was easily over 10mm too long.

I ended up (“ended up”) with a standard Gigabyte RX 6900 XT which fits easily as it’s well under 300mm.

I paid AU$2450 brand new a few weeks ago from a retailer here in Aus, they’re now $3059 at retail.

I would have liked a card with USB-C, but DisplayPort is fine for me at the moment, and if I get an Pro Display XDR I’ll grab one of those Belkin VR cables.

 

[flowrider]

^^^^I read your earlier post and it was my impression that anything less than 330mm would fit. Thanks for the clarification.

But, as I posted I needed the USB-C because I'm using the Apple LG display with a TB only port.

Lou

 

[DFP1989]

^^^^I read your earlier post and it was my impression that anything less than 330mm would fit. Thanks for the clarification.

But, as I posted I needed the USB-C because I'm using the Apple LG display with a TB only port.

Lou

I’ll try and take the case off today and measure it for you, but my initial 6800 XT was a decent amount too long.

At risk of getting bitten twice, I erred on the side of caution and basically limited my search to the Gigabyte 68/6900 XT and the reference cards. The latter I could only find used, and I got lucky finding stock of the former before the latest price jack.

 

[rondocap]

^^^^WOW - I wish I had seen those prices?

Are you using a USB-C cable or a TB cable?

Lou

Usb C cable from back of the LG 5k tb3 port to the 6900xt usb c. Tb3 cable did not work, but the monitor supplied usb c cable works in both os

 

[flowrider]

^^^^Thanks? - I only have the TB3 cable that came with my LG monitor. Just ordered USB-C to USB-C from Amazon.

However, flys in face of this:

'Is Thunderbolt the same as USB-C?': What you need to know about Thunderbolt 3's high-speed connectivity, in relation to USB-C cables

Thunderbolt 3 has adopted the USB-C format, so all Thunderbolt 3 ports are able to use ordinary USB-C cables.

www.businessinsider.com

Lou

 

[diamond.g]

I don’t reckon this card would have fit at 324mm.

I bought a 330mm 6800 XT without thinking and it was easily over 10mm too long.

I ended up (“ended up”) with a standard Gigabyte RX 6900 XT which fits easily as it’s well under 300mm.

I paid AU$2450 brand new a few weeks ago from a retailer here in Aus, they’re now $3059 at retail.

I would have liked a card with USB-C, but DisplayPort is fine for me at the moment, and if I get an Pro Display XDR I’ll grab one of those Belkin VR cables.

If the Mac has really really really good airflow you could try to go with a fanless radiator. Otherwise water-cooling blocks are card length and allow tighter installs.

 

[DFP1989]

Usb C cable from back of the LG 5k tb3 port to the 6900xt usb c. Tb3 cable did not work, but the monitor supplied usb c cable works in both os

Do you get the full 5K res with that setup? I’ve read stuff over the years that unless all the planets align you only get 4K on the LG 5K Ultrafine. Bunch of different revisions of the hardware too.

 

[rondocap]

^^^^Thanks? - I only have the TB3 cable that came with my LG monitor. Just ordered USB-C to USB-C from Amazon.

However, flys in face of this:

'Is Thunderbolt the same as USB-C?': What you need to know about Thunderbolt 3's high-speed connectivity, in relation to USB-C cables

Thunderbolt 3 has adopted the USB-C format, so all Thunderbolt 3 ports are able to use ordinary USB-C cables.

www.businessinsider.com

Lou

I do have the newer version of the monitor, if yours is the previous version, there may be some differences in how it works as well

 

[DFP1989]

I do have the newer version of the monitor, if yours is the previous version, there may be some differences in how it works as well

Is it working at full 5K res on your 6900 XT, or only at 4K?

 

[colincornaby]

Do you get the full 5K res with that setup? I’ve read stuff over the years that unless all the planets align you only get 4K on the LG 5K Ultrafine. Bunch of different revisions of the hardware too.

The Ultrafine 5k does not support Display Stream Compression, so it will only run in 4K in all cases with USB-C.

The Mac will use a scaled resolution that looks like 5k. But it’s not really 5k.

I believe that because the Pro Display XDR does support Display Stream Compression it will work at full res over USB-C.

 

[DFP1989]

The Ultrafine 5k does not support Display Stream Compression, so it will only run in 4K in all cases with USB-C.

The Mac will use a scaled resolution that looks like 5k. But it’s not really 5k.

I believe that because the Pro Display XDR does support Display Stream Compression it will work at full res over USB-C.

That’s what I was expecting, not really a desirable solution IMO

 

[rondocap]

Is it working at full 5K res on your 6900 XT, or only at 4K?

I believe just at 4k over usb c, but I’m using it to test mostly, regular use will be tb3 from an mpx module.

the 6900xt has to be the display out gpu when multiple gpus are used in FCPX for it to be primary it seems

 

[DFP1989]

I believe just at 4k over usb c, but I’m using it to test mostly, regular use will be tb3 from an mpx module.

That’s a pretty big caveat for “works” though, and a serious distinction for anyone reading your post assuming you mean the 5K display works at 5K.

I know I wouldn’t be interested in using a display that way.

 

[rondocap]

That’s a pretty big caveat for “works” though, and a serious distinction for anyone reading your post assuming you mean the 5K display works at 5K.

I know I wouldn’t be interested in using a display that way.

Perhaps, I wouldn’t want to use it long term either. The 6900xt is just a stop gap for me until the mpx modules, and I likely will pair it w5700x mpx now and use those for tb3 display


But at least at a basic level, it works in both os