Can someone perhaps confirm if the M1 can support 3440x1440@100Hz resolution via USB-C directly? (monitor to mac).
I cannot find information regarding this, therefore would appreciate your help.

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Answer

I have the M1 Pro Macbook and I'm using this directly with USB C on my [LG 38WK95C-W (38", 3840 x 1600 Pixels)](https://www.digitec.ch/de/s1/product/lg-38wk95c-w-38-3840-x-1600-pixels-monitor-8024287) which has 3840 x 1600

Answer

Look here (section "video"): https://support.apple.com/kb/SP825?locale=de_DE

It says it supports 6k @ 60Hz (thus 6016 × 3384 Pixel)

But it only supports ONE external display, not two! Thus you cannot use two full HD/4K or two whatever displays (without an additional external graphic card).

Furter there seems to be some issues with certain displays: https://www.notebookcheck.com/Test-Apple-MacBook-Air-2020-M1-Entry-Apple-M1-CPU-demuetigt-Intel-und-AMD.506560.0.html =>

"Im Test funktionierte 4K mit 60 Hz einwandfrei mit dem Philips Brilliance 329P9H und auch einem LG 4K Monitor. Ein Asus PB287Q lief jedoch in 4K nur mit 30 Hz und auch im Netz liest man hier von vereinzelten Problemen."

hope that helps

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Question about Apple MacBook Pro 13 – Late 2020

Can someone perhaps confirm if the M1 can support 3440x1440@100Hz resolution via USB-C directly? (monitor to mac). I cannot find information regarding this, therefore would appreciate your help.