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M2 Mac Mini External Display capabilities

I have a 1080p 120Hz monitor with HDMI 1.4. Can the baseline M2 or M2 Pro Mac Mini support 1080p @120Hz?


[Re-Titled by Moderator]

Posted on Dec 18, 2023 2:19 PM

Reply
5 replies

Dec 18, 2023 3:52 PM in response to Kyrolus

For the M2 Pro Mac mini, the HDMI port can support "up to 4K resolution at 240 Hz" (if you are using one monitor), or "up to 4K resolution at 144 Hz" (if you are using two monitors). There is no promise of support for refresh rates greater than 60 Hz over Thunderbolt or USB-C. I'm not sure what version of HDMI, or HDMI cables, you'd need to get the higher refresh rate.


For the M2 Mac mini, the limit appears to be 60 Hz.


Mac mini (2023) - Technical Specifications


Dec 18, 2023 7:35 PM in response to Kyrolus

Kyrolus wrote:

iiyama GB2470HSU-B1.


https://iiyama.com/gb_en/products/g-master-gb2470hsu-b1/


This is a 1920x1080 monitor with a 165 Hz refresh rate. According to the manufacturer, it has

  • HDMI x1 (v1.4, max. 1920 x 1080 @ 144 Hz)
  • DisplayPort x1 (v1.2, max. 1920 x 1080 @ 165 Hz)


If you download the user manual, page 37 (Appendix) suggests that it supports 1920x1080 at the following refresh rates:

  • 60.000 Hz
  • 119.880 Hz
  • 144.000 Hz
  • 165.000 Hz (DisplayPort only)


If you connected it via a USB-C (DisplayPort) to DisplayPort adapter cable, I'm not sure what rate you'd get – the Mac would be within specifications to support only 60 Hz, but might support one of the others.


With a M2 Pro Mac mini and a HDMI to HDMI connection, I think you'd get the 144 Hz as long as you did not try to connect three monitors to the M2 Pro Mac mini.

M2 Mac Mini External Display capabilities

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