Re:Ditching the MacBook Pro for a MacBook Air
by subraizada3 on Thursday November 22, 2018 @02:38PM
(#18512044)
I recently bought a used 2013 MBP; while Apple specs say it can only do 4k@30, the DisplayPort output is in fact capable of 4k@60.
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Re:Ditching the MacBook Pro for a MacBook Air
by yhoiseth on Friday November 23, 2018 @12:12PM
(#18517637)
Do you have to tweak anything to achieve this?
Re:Ditching the MacBook Pro for a MacBook Air
by subraizada3 on Friday November 23, 2018 @01:56PM
(#18518229)
No, it worked out of the box on the 15" model.
The GPU must have a HDMI 2.0 output for 4k@60, and this is usually not present on all but the most recent laptops, producing the 30 Hz limitation.
On the other hand, DisplayPort 1.2 supports 4k@60. This is built into the Thunderbolt 2 ports on Macs, so as long as the GPU supports DP 1.2 it will work.
On my MBP (15"), the DP(Thunderbolt) + HDMI ports are wired directly to the Nvidia GPU. Parent mentioned his computer only had the Intel Iris graphics (13" model), which apparently can't do 4k@60 (so my previous comment was incorrect :( ).