Thunderbolt 3 dock DP passthrough latency

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cheddle
Posts: 1
Joined: 21 Feb 2021, 23:26

Thunderbolt 3 dock DP passthrough latency

Post by cheddle » 21 Feb 2021, 23:31

Hey, I did search but wasn't successful... So two questions, and I dont have the latency testing gear to work this out:

1. How much additional latency is incurred when connecting a GPU to an internal thunderbolt card (such as an Asus ThunderboltEX 3-TR card) and then connecting my monitor to a Thunderbolt dock (such as a Dell WD19TB).

TLDR how much additional latency is incurred when going GPU -> DP cable -> Thunderbolt card -> Thunderbolt cable -> WD19TB dock -> DP cable -> Monitor

vs

GPU -> DP cable -> Monitor

2. How much additional latency is incurred when using an eGPU via Thunderbolt but passing the video back to the built in disaply/on-board display outputs.

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