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I got an Asus VG248 (refresh rate 144hz) monitor . I also have a dual link adapter.

On my Retina Macbook 15", I cannot set my monitor refresh rate to higher than 60 hz. Why is this? I have mountain lion.

It is the only option that is available. enter image description here

Alex
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1 Answers1

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Basically it's a design limitation of the Macbook. I'll break it down a little.

60Hz is the standard refresh rate on many monitors (including the Macbook). The origins of this go back to syncing with power supplies which are also generated at 60hz, but that's perhaps a little off topic.

As the GPU is only designed to deal with the MBPr's screen, primarily it works with 60hz. I'd say as an adaption the display port will also maintain this "limitation", and given that most other devices out there are only capable of 60hz, 99% of the time it doesn't have a negative impact. Your particular monitor can of course go higher, but the macbook GPU won't be making extra frames for the higher refresh rate.

So the answer simply comes down to - right or wrong, that's how apple designed it.

Peleus
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