Question about Thunderbolt 3 accessaries

[evo2point0]

I currently use a 16" MBP with a Caldigit TS3 Plus. And I've just placed an order for a Pro Display XDR.

MacBook Pro has four Thunderbolt 3 ports.
Thunderbolt 3 has 40Gbps of bandwidth.

My questions are:

1. Is the 40Gbps bandwidth shared across all four Thunderbolt 3 ports on the MacBook Pro 16? (or is a per port bandwidth?)

2. MBP connected to Caldigit TS3 Plus and Pro Display XDR connected to the Caldigit TS3 Plus. Would this work to drive a 6K resolution ?

Thanks.

 

[satcomer]

In a answer NO! Think of One controller for two ports on on side of you Mac! So to best speeds use one connection each side of laptop to get the quickest speeds out of Thunderbolt 3!

 

[evo2point0]

Indeed. According to iFix tear down, it has two Thunderbolt controllers on motherboard (one each side).
However, AMD’s NAVI GPUs supports DSC (Display Stream Compression). Wouldn’t DSC pass through Caldigit TS3 Plus?

 

[chrfr]

I currently use a 16" MBP with a Caldigit TS3 Plus. And I've just placed an order for a Pro Display XDR.

MacBook Pro has four Thunderbolt 3 ports.
Thunderbolt 3 has 40Gbps of bandwidth.

My questions are:

1. Is the 40Gbps bandwidth shared across all four Thunderbolt 3 ports on the MacBook Pro 16? (or is a per port bandwidth?)

2. MBP connected to Caldigit TS3 Plus and Pro Display XDR connected to the Caldigit TS3 Plus. Would this work to drive a 6K resolution ?

Thanks.

You’ll almost certainly need to put the TS3 on one bus and the display on the other.

 

[evo2point0]

For the record, according to this informative thread,
it looks like Pro Display XDR and MBP 16" connected through Caldigit TS3 Plus work fine at full 6K resolution. This definitely is because AMD's NAVI GPU supporting DSC (Display Streaming Compression).

 

[chrfr]

For the record, according to this informative thread,
it looks like Pro Display XDR and MBP 16" connected through Caldigit TS3 Plus work fine at full 6K resolution. This definitely is because AMD's NAVI GPU supporting DSC (Display Streaming Compression).

I only saw a post that someone is running the dock and the display both connected to the same side of the computer, not chained together, but perhaps I missed the post in my quick scan. Perhaps you could link to a specific post.
Regardless, the 2 buses will each perform better if not saturated, so it'd be preferable to put one device on each if possible.

 

[evo2point0]

I only saw a post that someone is running the dock and the display both connected to the same side of the computer, not chained together, but perhaps I missed the post in my quick scan. Perhaps you could link to a specific post.
Regardless, the 2 buses will each perform better if not saturated, so it'd be preferable to put one device on each if possible.

It’s in the first post of the linked thread.