How to hz on monitor

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Last updated: April 4, 2026

Quick Answer: Hz on a monitor refers to its refresh rate, indicating how many times per second the screen updates its image. A higher Hz means a smoother visual experience, reducing motion blur and improving responsiveness, which is particularly beneficial for gaming and fast-paced content.

Key Facts

What is Monitor Hz?

The term 'Hz' stands for Hertz, which is a unit of frequency. In the context of computer monitors, Hz refers to the refresh rate. The refresh rate indicates how many times per second the image on your screen is updated or redrawn. For example, a monitor with a 60Hz refresh rate updates the image 60 times every second, while a 144Hz monitor updates it 144 times per second.

Why Does Monitor Hz Matter?

The refresh rate significantly impacts the visual experience. A higher refresh rate leads to a smoother and more fluid display of motion. This is especially noticeable in:

Conversely, a lower refresh rate can result in motion blur, screen tearing (where the image appears split horizontally), and a general sense of sluggishness, especially when viewing fast-moving objects.

Understanding Common Refresh Rates

How to Check and Change Your Monitor's Hz

Most modern operating systems allow you to check and adjust your monitor's refresh rate. The process varies slightly depending on your OS:

Windows:

  1. Right-click on your desktop and select 'Display settings'.
  2. Scroll down and click on 'Advanced display settings'.
  3. Under 'Choose a refresh rate', select the highest available option that your monitor supports and that you desire.

macOS:

  1. Click the Apple menu () in the top-left corner.
  2. Select 'System Settings' (or 'System Preferences' on older versions).
  3. Navigate to 'Displays'.
  4. Select your monitor and look for a 'Refresh Rate' dropdown menu. Choose the desired setting.

Note: Your monitor must support the refresh rate you select. If you don't see higher options, your monitor may not be capable of them, or your graphics card drivers might need updating. Ensure you are using the correct display cable (e.g., DisplayPort is often preferred for higher refresh rates over HDMI on some older setups).

The Role of Graphics Card (GPU) and Cables

Simply buying a high-Hz monitor won't automatically give you a smooth experience if your computer's hardware can't keep up. The graphics card (GPU) is responsible for rendering the images that your monitor displays. To fully utilize a 144Hz monitor, your GPU needs to be able to generate at least 144 frames per second (FPS) in the applications or games you are running. If your GPU can only produce, say, 80 FPS, then a 144Hz monitor will still only display 80 unique frames per second, negating the benefit of the higher refresh rate.

Similarly, the display cable you use is crucial. Older cables or lower-spec versions might not have the bandwidth to support high refresh rates at high resolutions. DisplayPort is generally recommended for high refresh rates, especially at resolutions like 1440p or 4K, as it offers greater bandwidth than most HDMI standards. Always check the specifications of your monitor, GPU, and cable to ensure compatibility.

Adaptive-Sync Technologies (G-Sync and FreeSync)

Even with a powerful GPU, perfect synchronization between the GPU's frame output and the monitor's refresh rate can be challenging. When the GPU's FPS fluctuates, it can lead to screen tearing or stuttering. This is where Adaptive-Sync technologies come in:

Most modern gaming monitors support either G-Sync, FreeSync, or both (often referred to as 'G-Sync Compatible' for FreeSync monitors that meet NVIDIA's standards). Enabling these features in your graphics card control panel and monitor settings can further enhance visual fluidity.

Choosing the Right Hz for You

The ideal Hz for your monitor depends on your usage and budget:

Consider your budget, the capabilities of your GPU, and the types of content you consume most frequently when making your decision. A higher refresh rate is generally better if your system can support it and you value visual smoothness.

Sources

  1. Display refresh rate - WikipediaCC-BY-SA-4.0
  2. NVIDIA G-Sync Technologyfair-use
  3. AMD FreeSync Technologyfair-use

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