What is physically different in a 144 hz pc monitor that makes its refresh rate faster than an 60 hz monitor ?

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What is physically different in a 144 hz pc monitor that makes its refresh rate faster than an 60 hz monitor ?

In: Technology

the circuitry inside it, it has a processing unit that has a little crystal inside which pulsates at a certain frequency. This electric crystal combined with other clock signals gives info to the circuit on how often something happens.