Why windows laptops cannot drive external 4K display at 60Hz?

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modeonoff

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Jul 16, 2017
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Hello, I checked some of the high-end laptops from HP and Lenovo. I found that they use HDMI 1.4 instead of HDMI 2.0. As far as I know, we need HDMI 2.0 to drive 4K display at 60Hz. Does that mean most Windows laptops cannot drive external 4K displays at 60Hz?
 
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