Can a Mini DisplayPort to HDMI cable support resolutions above 1920x1200?

Posted by cnst on Super User See other posts from Super User or by cnst
Published on 2013-07-06T19:22:15Z Indexed on 2014/06/02 3:37 UTC
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resolution

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hdmi

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dvi

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displayport

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mini-displayport

Is it theoretically possible for a cheapo Mini DisplayPort to HDMI cable or adapter to support resolutions above 1920 × 1200, e.g. 2560 × 1440 (QHD)?

Or is it always electrically-equivalent to a single-link DVI, and such resolutions above 1920×1200 are out of the question?

From empirical evidence, I've tried out some rather expensive brand-name adapter from a local Apple dealer that was marked as HDMI 1.3 compliant with my mid-2013 MacBook Air (5000) and also with X230 (4000), and a QHD monitor, but was only getting a maximum of FHD resulution through such an arrangement.

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