Will a Pro Display XDR work with a Caldigit TS3 Thunderbolt 3 Dock?

ruslan120

macrumors 6502a
Original poster
Jul 12, 2009
937
646
I've been considering a Pro Display XDR for a while now. Given this video, and its conclusion that the Pro Display XDR is an inadequate solution for creative professionals, it's likely they might go on sale (maybe at a reseller).

So - will a Pro Display XDR work if daisy chained to a Caldigit TS3 Dock? Both of my Thunderbolt 3 ports on a 2019 iMac are populated (1 - Caldigit, 2 - eGPU).

If not, it's not the end of the world. I can plug the eGPU into the Caldigit and free up a port. Hoping to keep the extra 10-15% of performance and not do so.
- - Post merged: - -

To guess, I imagine the answer is no. As is, the 6K resolution saturates most of the connection (afaik) and that might cause issues once I plug in other peripherals into the TS3 (solid state drive over USB C (10 gigabits), another 4K display into the displayport (? gbps)).
 

chrfr

macrumors G3
Jul 11, 2009
8,587
2,769
I've been considering a Pro Display XDR for a while now. Given this video, and its conclusion that the Pro Display XDR is an inadequate solution for creative professionals, it's likely they might go on sale (maybe at a reseller).

So - will a Pro Display XDR work if daisy chained to a Caldigit TS3 Dock? Both of my Thunderbolt 3 ports on a 2019 iMac are populated (1 - Caldigit, 2 - eGPU).

If not, it's not the end of the world. I can plug the eGPU into the Caldigit and free up a port. Hoping to keep the extra 10-15% of performance and not do so.
- - Post merged: - -

To guess, I imagine the answer is no. As is, the 6K resolution saturates most of the connection (afaik) and that might cause issues once I plug in other peripherals into the TS3 (solid state drive over USB C (10 gigabits), another 4K display into the displayport (? gbps)).
There isn't enough bandwidth to run the display at full resolution through a hub.
 
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ruslan120

macrumors 6502a
Original poster
Jul 12, 2009
937
646
Thanks for the response / information.

Would you happen to have any good sources as to why? I'm a bit unfamiliar with how Thunderbolt controllers balance bandwidth. I know there's a maximum of 40 gigabits per second but say you have a dock which uses 15 gbps running a SSD and 4K monitor at full tilt, and daisy chains an eGPU, does the dock just hand the remaining bandwidth to the daisy chain TB3 port?