If you’re reading this, you likely have a 2012 Retina MacBook Pro and want to know if it supports an external 4K monitor.
Here’s a screen shot of my 2012 Retina MacBook Pro driving a Dell P2715Q 4K monitor at 3840×2160 resolution over Thunderbolt/Mini DisplayPort TL DR: Yes, the Original rMBP Does 4K over DisplayPort and HDMI! Here’s how I connected a 4K Dell P2715Q display to may 2012 Retina MacBook Pro, one of the first 4K-capable Macs. 4K video is still in its infancy, but Mac users are clamoring for high-resolution external displays. Many Macs have the ability to drive a 4K display, but it’s not easy to get it to work with older hardware.
