New Retina MacBook Pros can drive 4K displays at 60Hz - when running Windows, Mac OS needs new drivers | Ultra High Definition Television (UHDTV) |

Tests by French site found that current model Retina MacBook Pro machines can use their Thunderbolt 2 connections to drive the Sharp PN-K321 4K display at 60Hz when running Windows 8.1 with the latest NVidia drivers, rather than the 30Hz possible with OS X.

This suggests that OS X will be able to do the same when Apple updates the rMBP video/Thunderbolt 2 drivers.