4 ms·My 2013 15" MBP drives my 4K display at 60Hz...by photojosh 9y agoMy 2013 15" MBP drives my 4K display at 60Hz...jjawssd 9y agoI'm assuming this is with DisplayPort?photojosh 9y agoYes. My comment was just an extra anecdote to the grandparent comment... if you want 4K at 60 fps, why aren't you plugging in via DP instead of HDMI?