AMD Radeon Pro W5700x Graphics Card with USB-C Monitor Output
 
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AMD Radeon Pro W5700x Graphics Card with USB-C Monitor Output  

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itsage
(@itsage)
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Joined: 4 years ago
 

AMD finally has a graphics card with USB-C monitor output! The Radeon Pro W5700 is part of Navi family and should have eGPU support in macOS. Hopefully USB-C port will make its way to other non-workstation Radeon cards in the near future.

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Eightarmedpet
(@eightarmedpet)
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Joined: 4 years ago

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joevt
(@joevt)
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Joined: 3 years ago
 

I can't find mention of the capabilities of the USB-C port on the AMD website. They say it's for video output. If it doesn't also support USB then it's useless. AnandTech says it's VirtualLink or at least for VR. Does VR actually need USB 3.1 Gen 2 speed?
https://www.anandtech.com/show/15124/amd-announces-radeon-pro-w5700-navi-gets-drafted-to-the-pros

ExtremeTech says that it supports DSC (Display Stream Compression). Have other cards mentioned support for DSC? I don't think I've seen examples of DSC from a PC before. I don't think Apple drivers support DSC.
https://www.extremetech.com/computing/301999-hands-on-with-amds-new-radeon-pro-w5700-workstation-gpu

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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joevt
(@joevt)
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Joined: 3 years ago
 

We now know that the Apple Pro Display XDR uses DSC HBR2 for 6K 12 bpc for GPUs that support DSC in macOS and Windows (5300M, 5500M, W5700X, maybe 5700XT, RTX 2080 Ti).

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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sevenup
(@sevenup)
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Joined: 10 months ago
 

what a pity Cry 😥 

maybe works for the new LG 5K USB-C version...but still 4k resolution?

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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joevt
(@joevt)
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Joined: 3 years ago
 

@sevenup

LG UltraFine 5K can accept USB-C with DisplayPort alt mode input, but only at 4K because it does not support a single link 5K mode.

The LG UltraWide 5K2K display does support both dual link SST 5K over Thunderbolt (to support Macs that only have DisplayPort 1.2) and single link SST 5K using DisplayPort 1.4 (through separate DisplayPort input, and maybe also through Thunderbolt input).

The Apple Pro Display XDR through its Thunderbolt port supports all the connection modes of the LG UltraWide 5K2K for 5K or 4K resolutions but also adds a DSC option (required for 6K over single link) and a dual link HBR3 option (required for 6K for non-DSC computers).

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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sevenup
(@sevenup)
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Joined: 10 months ago
 
Posted by: @joevt

@sevenup

LG UltraFine 5K can accept USB-C with DisplayPort alt mode input, but only at 4K because it does not support a single link 5K mode.

The LG UltraWide 5K2K display does support both dual link SST 5K over Thunderbolt (to support Macs that only have DisplayPort 1.2) and single link SST 5K using DisplayPort 1.4 (through separate DisplayPort input, and maybe also through Thunderbolt input).

The Apple Pro Display XDR through its Thunderbolt port supports all the connection modes of the LG UltraWide 5K2K for 5K or 4K resolutions but also adds a DSC option (required for 6K over single link) and a dual link HBR3 option (required for 6K for non-DSC computers).

I just got my hands on the new arrived Razer Core X Chroma and AMD RP W5700, and the LR/PS performance under macOS is poor with LG 5K...will power on the LG 4K UK850 later for the performance test with LR/PS...and also compare the windows version later... 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Aled Brown
(@gelert42)
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Joined: 3 years ago
 

@sevenup

I'd be very interested in your tests with the LG 5K (with USB-C) and the W5700 on macOS. I have the 5K with USB-C and a WX9100 ATM but obviously there's no way to power the 5K directly. I was hoping the W5700 would do the trick.

Both LG and AMD websites are extremely vague on what the USB-C ports are capable of. If you read AMD's marketing at face value you'd believe all ports could drive an 8K singularly.

If you'd like to push Metal for some 3D Rendering on the GPU AMD's ProRender for Blender plug-in is really cool:

https://www.amd.com/en/technologies/radeon-prorender-blender

2019 MBP15 2.4GHz i9 32GB with VEGA 20 dGPU - macOS 10.15
2019 LG 5K Mk2 94W Thunderbolt 3 Monitor (USB-C in)
Radeon Pro WX9100 16GB + Sonnet Breakaway 650W eGPU
Radeon RX 580 8GB + Sonnet Developer 350W eGPU


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sevenup
(@sevenup)
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Joined: 10 months ago
 

I think macOS 10.15.2 didn't fully support the AMD RP W5700:

1.The eGPU recognized as AMD Radeon Navi10;

2.When plugin the LG 5K's TB3 cable to W5700's USB-C port, macOS popup a message to tell me the TB device is unrecognized and suggest to plugin the device directly to MBP;

3.App crashing randomly Cry 😥 Cry no matter plugin the LG 4k to the W5700's USB-C port or plugin the LG 5k to MBP's TB port;

btw, the W5700 is a very silent card Smile

Hope the next macOS build would save this card.

 

Posted by: @gelert42

@sevenup

I'd be very interested in your tests with the LG 5K (with USB-C) and the W5700 on macOS. I have the 5K with USB-C and a WX9100 ATM but obviously there's no way to power the 5K directly. I was hoping the W5700 would do the trick.

Both LG and AMD websites are extremely vague on what the USB-C ports are capable of. If you read AMD's marketing at face value you'd believe all ports could drive an 8K singularly.

If you'd like to push Metal for some 3D Rendering on the GPU AMD's ProRender for Blender plug-in is really cool:

https://www.amd.com/en/technologies/radeon-prorender-blender

Me too...

the W5700's data sheet from AMD website shows the display output support is 3*5k and 3*8k.

And now I think it's real Cry

W5700 datesheet
 
Posted by: @joevt

@sevenup

LG UltraFine 5K can accept USB-C with DisplayPort alt mode input, but only at 4K because it does not support a single link 5K mode.

The LG UltraWide 5K2K display does support both dual link SST 5K over Thunderbolt (to support Macs that only have DisplayPort 1.2) and single link SST 5K using DisplayPort 1.4 (through separate DisplayPort input, and maybe also through Thunderbolt input).

The Apple Pro Display XDR through its Thunderbolt port supports all the connection modes of the LG UltraWide 5K2K for 5K or 4K resolutions but also adds a DSC option (required for 6K over single link) and a dual link HBR3 option (required for 6K for non-DSC computers).

The 7nm RDNA card such as RX 5700 series are DP 1.4 DSC ready, so I was hoping W5700's USB-C port has DSC option too.

Now I believe the W5700's USB-C port is for easy plugin VR devices only.

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

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Aled Brown
(@gelert42)
Trusted Member
Joined: 3 years ago
 

@sevenup

Thank you for your comprehensive reply. The W5700 is coming to the Mac Pro as an MPX card so the next few updates to macOS should bring full support and hopefully the external W5700 will also begin to work.

I saw the AMD data sheet but it isn't explicit that it'll do 5K through the USB-C port. It sounds like it 'should'.

And as you say it's also an issue of "Will the LG 5K accept it" if it does. LG don't say what their screen is capable of.

I bought the 5K with the USB-C option because I hoped it would be a little more future proof than just having TB3. But there's also hope that USB-4 which is TB3 may save the day in a few years time.

I'd be happy with fully accelerated 4K from the W5700 via USB-C to the LG5K to be honest.

 

2019 MBP15 2.4GHz i9 32GB with VEGA 20 dGPU - macOS 10.15
2019 LG 5K Mk2 94W Thunderbolt 3 Monitor (USB-C in)
Radeon Pro WX9100 16GB + Sonnet Breakaway 650W eGPU
Radeon RX 580 8GB + Sonnet Developer 350W eGPU


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