Currently I'm running an external 27" 2560x1440 apple cinema display from the thunderbolt port. I have a second thunderbolt port, so I was wondering if it's possible to also use a thunderbolt enabled 3440x1440 monitor, maybe like the LG 34UM95C. The computer is a late 2013 iMac with an NVIDIA GeForce GT 755M graphics card.


Everymac says your machine can support two external displays up to 2560x1600 via Thunderbolt, so I think the answer would be no.

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    This can't be right. I am currently running two external displays at 4k30 (3840 x 2160 @ 30hz) on my Late 2013 27" iMac with a 780M. – Alexander Dec 29 '17 at 19:17

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