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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 laptop
by subraizada3 8y ago
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 :( ).