MP 7,1 4K Monitor Support

[mossman1120]

I have a 2019 MacPro with stock W5700X MPU and an after market RX 6900 XT. I recently got a new monitor U3225QE and I am trying to figure out if I can use the included Thunderbolt 4 cable (I know I only have Thunderbolt 3) to connect (video + data) or if I need a USB-C style connector that goes to DisplayPort for video + USB for data? I am also curious if I would only get 60 Hz refresh rate or 120 Hz. Any help would be greatly appreciated! Thanks 🙂

 

[mattspace]

What GPU are you going to use for display, and what happens when you try to connect it?

 

[mossman1120]

What GPU are you going to use for display, and what happens when you try to connect it?

I don't have it yet though I would like to use the RX 6900 XT since it is "better card". Trying to plan ahead to make sure I have the right cables.

 

[mattspace]

either connection option should work, though some TB4 displays have come out that don't work on TB3.

Does the 6900 have Type-c connectors? Because that's unlikely to be thunderbolt, and the TB ports on your mac are only going to do video from the 5700.

 

[mossman1120]

either connection option should work, though some TB4 displays have come out that don't wok on TB3.

Does the 6900 have Type-c connectors? Because that's unlikely to be thunderbolt, and the TB ports on your mac are only going to do video from the 5700.

Well that would be disappointing. I was looking forward to not having to run both a video and a data cable to the monitor.

I am not sure about the 6900, when I look in System Information I see the following for the display currently plugged into it:

Chipset Model: AMD Radeon RX 6900 XT
Type: GPU
Bus: PCIe
Slot: Slot-3
PCIe Lane Width: x16
VRAM (Total): 16 GB
Vendor: AMD (0x1002)
Device ID: 0x73bf
Revision ID: 0x00c0
ROM Revision: 113-D4120100-100
Metal Support: Metal 3
Displays:
DELL U3014:
    Resolution: 2560 x 1600
    UI Looks like: 2560 x 1600 @ 60.00Hz
    Framebuffer Depth: 30-Bit Color (ARGB2101010)
    Display Serial Number:
    Main Display: Yes
    Mirror: Off
    Online: Yes
    Rotation: Supported
    Connection Type: Thunderbolt/DisplayPort

So I am not sure. The full model of the card is: GIGABYTE AMD Radeon RX 6900XT 16GB Reference.

Do you know if it will support 120 Hz or only 60 Hz?