MacBook 2016 compatible with LG 4K monitor?

[lbjsong]

I wonder its graphic card is good enough for one 4k monitor.

 

[SumNextGai]

It'll work, but you'll only get 30Hz instead of the typical 60Hz, meaning fast moving images/videos would look sluggish.

 

[Precursor]

It'll work, but you'll only get 30Hz instead of the typical 60Hz, meaning fast moving images/videos would look sluggish.

How so? rMB already gets 4k@60Hz with LG 27UD88 which also offers usb-c connection. Where did you get this 30Hz from?

 

[BeatCrazy]

We're already taking about it here:

https://forums.macrumors.com/thread...he-new-lg-ultrafine-4k-display-usb-c.2009909/

 

[Sheza]

It's literally in the product description.

 

[SumNextGai]

How so? rMB already gets 4k@60Hz with LG 27UD88 which also offers usb-c connection. Where did you get this 30Hz from?

https://support.apple.com/en-us/HT206587

At the HDMI section, it says;

"MacBook (Retina, 12-inch, Early 2015) and later supports these resolutions and refresh rates over HDMI 1.4b using the USB-C Digital AV Multiport Adapter.

• 3840x2160 at 30 Hz refresh rate
• 4096x2160 at 24 Hz refresh rate (mirroring is not supported at this resolution)"

 

[zhenya]

https://support.apple.com/en-us/HT206587

At the HDMI section, it says;

"MacBook (Retina, 12-inch, Early 2015) and later supports these resolutions and refresh rates over HDMI 1.4b using the USB-C Digital AV Multiport Adapter.

• 3840x2160 at 30 Hz refresh rate
• 4096x2160 at 24 Hz refresh rate (mirroring is not supported at this resolution)"

That's a limitation of the HDMI spec used in the adapter. When connected via USB-C, 4k/60hz is supported. Any USB ports connected over the same cable will drop to 2.0 speeds.

 

[thekev]

https://support.apple.com/en-us/HT206587

At the HDMI section, it says;

"MacBook (Retina, 12-inch, Early 2015) and later supports these resolutions and refresh rates over HDMI 1.4b using the USB-C Digital AV Multiport Adapter.

• 3840x2160 at 30 Hz refresh rate
• 4096x2160 at 24 Hz refresh rate (mirroring is not supported at this resolution)"

Use a display with a displayport or usbc connection. hdmi is not appropriate for a computer display.

 

[Rapp]

https://support.apple.com/en-us/HT206587

At the HDMI section, it says;

"MacBook (Retina, 12-inch, Early 2015) and later supports these resolutions and refresh rates over HDMI 1.4b using the USB-C Digital AV Multiport Adapter.

• 3840x2160 at 30 Hz refresh rate
• 4096x2160 at 24 Hz refresh rate (mirroring is not supported at this resolution)"

The new macOS update 10.12.1 allows 4k @ 60Hz, I have the LG 27UD88 and using it now. It supports mirroring or as a 2nd display with the MacBook screen.