Mac mini 2018 DisplayPort 1.4

[antoniokratos]

Hello,

Is Mac Mini 2018 compatible with DisplayPort 1.4 using USB-C to DP1.4 cable?

Right now, I'm using a USB-C to DP1.2 cable and it works without any problem at 1440p@120Hz 10-bit.

But I'd like to test if I could get 1440p@144Hz 10-bit with newer USB-C to DP1.4 cables or if the computer's limit is DisplayPort 1.2.

Greetings.

 

[joevt]

Mac mini 2018 Intel iGPU is limited to DisplayPort 1.2 (HBR2 link rate). You need an eGPU if you want HBR3 link rate.

2560x1440 144Hz requires a pixel clock of ≈604 MHz using CVT-RB timing. HBR2 link rate pixel clock limit for 10bpc is 576MHz. For 8bpc, the limit is 720MHz but I would have to do some tests to verify the Mac mini's limit.

 

[carylee2002]

I find that the igpu in the macmini's something to be desired, especially if you need raw gpu power to play games in pc mode. That is why I use a egpu with a good video card that can handle most of todays games and having a separate PSU to run it avoids hiccups.