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I have a mid-2012 13" Macbook Air with Intel HD Graphics 4000 1536 MB

My monitor died recently so I'm in the market for a new one, and I would like to know the maximum supported resolution for external displays @ 60hz refresh rate on this model?

The Apple info page here https://support.apple.com/kb/sp670?locale=en_GB ...states that max res is 2560x1600 but it doesn't state the refresh rate.

I don't want to go for that if only 30hz is supported.

The canonical question for Macbook display resolution answers is:
MacBook Pro - how many displays, what resolution/frequency?

This provides a link to EveryMac website which has more detailed specs info than provided by Apple.

However when I lookup my MBA on EveryMac I only find the following info:

2nd Display Support: "Dual/Mirroring*
2nd Max. Resolution: 2560x1600 (x2)
Details: *Although Apple makes no mention of it, third-parties have discovered that this model can simultaneously support two external displays up to 2560x1600 "daisy chained" via Thunderbolt."

As with the official Apple specs, this does not give the refresh rate supported at 2560x1600.

Commenters have suggested that 2560x1600 is only supported @ 30hz... in which case my question still stands: what is the max resolution supported @ 60hz (for my specific model of Macbook)?

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    @Tetsujin that question is completely unrelated to what I am asking – Anentropic Oct 2 '18 at 12:43
  • @Allan that comes very close to answering it, but ultimately the EveryMac Ultimate Lookup does not specify the refresh rate either. It says "Dual/Mirroring* 2nd Max. Resolution: 2560x1600 (x2) Details: *Although Apple makes no mention of it, third-parties have discovered that this model can simultaneously support two external displays up to 2560x1600 "daisy chained" via Thunderbolt." So that's interesting, but does not confirm if either of those displays were operating at 60hz – Anentropic Oct 2 '18 at 13:13
  • The Intel HD 4000 uses DisplayPort 1.1 and HDMI 1.4 standards. Both of which are limited to 30Hz. It's not an Apple issue but an HD 4000 issue. You need either DP 1.2 or HDMI 2.0. (IMO) I would avoid any MBP without a discrete GPU. – Allan Oct 2 '18 at 13:46
  • @Allan the question is still what is the max resolution for external display @ 60hz, for my MBA 2012 – Anentropic Oct 2 '18 at 14:07
  • You can't do 60Hz and the Max resolution is answered by the dupe. – Allan Oct 2 '18 at 17:25

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