On: Ditching the MacBook Pro for a MacBook Air

[subraizada3]

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.

[yhoiseth → subraizada3]

Do you have to tweak anything to achieve this?

[subraizada3 → yhoiseth]

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 :( ).