Xiaomi RedmiBook 9 Pro: how many hertz does the screen?

Xiaomi RedmiBook 9 Pro laptops have long been a popular choice among users who value balance of price and performance. However, when buying, many face confusion about the characteristics of the screen — especially when it comes to refresh rates. Official sources and sellers do not always give an unequivocal answer: 60 Hz or 90 Hz for this model?

It’s important to understand that screen refresh rates directly affect picture smoothness, text comfort, and even battery life. If you plan to use a laptop for gaming, video watching, or professional graphics, this parameter becomes critical. In this article, we’ll not only answer the main question, but also compare the RedmiBook 9 Pro with similar models, talk about hidden display settings, and give recommendations for optimization.

There's an endless debate about whether 60Hz or 90Hz is better, and some people say that the difference is almost invisible, others swear that after 90Hz, it's impossible to go back to 60, and we'll come to the technical side of the question: which RedmiBook 9 Pro modifications support the increased frequency, how it affects the battery, and whether to overpay for the extra hertz.

Official Features: What Does Xiaomi Say?

Xiaomi and the RedmiBook 9 Pro documentation list the screen frequency as 60Hz, but there's a caveat: it's the basic version of the model, because RedmiBook 9 Pro has been branded with several modifications, and some of them do support 90Hz, but only in certain regions or under different names.

For example, in China, RedmiBook Pro 14/15 2022 was sold with a 2.8K screen and a frequency of 90 Hz, whereas the global version of RedmiBook 9 Pro (model number RB15P4 or RB14P4) is usually limited to 60 Hz. This is a classic case of the same brand using similar names for different devices. To make no mistake, always check the exact model number on the box or in the specifications.

Another thing: even if the screen technically supports 90Hz, Windows default settings can set 60Hz. Many users simply don't know that the frequency can be manually changed, and we'll talk about this in detail in one of the following sections.

• 📄 Basic version: RedmiBook 9 Pro (RB15P4/RB14P4) — 60 Hz, permission. 1920×1080.
• 🌍 Regional differences: In China, modifications with 90 Hz and resolution 2880×1800.
• ⚙️ Default settings: Even with 90Hz support, Windows can automatically set 60Hz.
• 🔍 How do you check? Go to the settings. → System system → Screen. → Additional screen parameters.

How to find out the real screen frequency of your RedmiBook 9 Pro?

If you’ve already bought a laptop or are considering a particular model in the storefront, there are a few ways to accurately determine the refresh rate of the screen.

1. Right-click on the desktop and select Screen Settings.
2. Scroll down and click on the Additional screen settings.
3. In the Adapter Properties section, select the List of all modes.
4. Look at the available frequencies – if there is 90Hz, your screen supports them.

If there is only 60 Hz on the list, it doesn’t always mean that the screen is not capable of more, you may need to update your graphics card drivers or turn on the BIOS mode, and you can also use third-party utilities like TestUFO or NVIDIA Pendulum Demo, which visually demonstrate the current refresh rate.

⚠️ Note: Some sellers in the description of the product indicate "up to 90 Hz", referring to the maximum supported frequency, but in fact, the laptop can have a screen with a fixed 60 Hz. Always specify the model number and check the characteristics on the official Xiaomi website.

Another reliable way to use a team in PowerShell is to:

Get-CimInstance -Namespace root/wmi -ClassName WmiMonitorBasicDisplayParams

In the conclusion, find the MaxVerticalFrequency parameter - it will show the maximum screen frequency in hertz.

60Hz vs 90Hz Comparison: Which Is Best for RedmiBook 9 Pro?

The difference between 60 Hz and 90 Hz is noticeable when you scroll, move windows, or in dynamic scenes (such as games). However, for most office tasks — documenting, watching videos, or surfing the Internet — 60 Hz is enough. Let's take a look at the pros and cons of each option:

If you’re choosing between two versions of the RedmiBook 9 Pro and are wondering if you should overpay for 90Hz, ask yourself:

• 🎮 You play games or work with 3D-graphic? → 90Hz is preferred.
• 📊 Main use - office tasks? → 60 Hz is enough.
• 🔋 Autonomy is important? → 60 Hz to extend battery life.
• 💰 Budget limited? → 60Hz models are usually cheaper.

Can I overclock the RedmiBook 9 Pro screen to 90 Hz?

If your RedmiBook 9 Pro initially supports only 60Hz, but you want to increase the frequency, you have a few options, but let’s warn you right away: not all screens are physically capable of operating at higher frequencies, and forced overclocking can lead to artifacts or even damage to the matrix.

Ways to increase frequency:

1. Driver Update: Install the latest drivers for the graphics card (Intel Iris Xe or NVIDIA MX450, depending on the modification) Sometimes newer versions add support for additional modes.
2. CRU (Custom Resolution Utility): This utility allows you to manually add non-standard resolutions and frequencies. Download it from the official website, create a new profile from 90 Hz and restart the laptop. Risk: if the screen does not support this frequency, the image may disappear.
3. BIOS settings: Some versions of the BIOS have options to control the display. Go to the BIOS (usually the F2 or Del key when booting) and check the Advanced → Display Settings section.

⚠️ Note: If the frequency changes CRU The screen stopped working (black screen or artifacts), wait 15 seconds — Windows will automatically return the previous settings. If this did not happen, boot in Safe Mode and delete the created profile.

If you decide to experiment, follow this checklist:

The effect of screen frequency on performance and battery

Many users mistakenly believe that screen frequency has no effect on laptop performance. In fact, 90Hz increases the load on the GPU, resulting in:

• 📉 Reduced battery life by 10-20% (depending on brightness and tasks).
• 🔥 Increased body temperature, especially during long-term work.
• 🎮 Reduce. FPS in games, if the graphics card is weak (for example, the built-in Intel Iris Xe).

To minimize the negative effects, you can use adaptive refresh rates, for example, Windows 11 has a Dynamic Refresh Rate (DRR) feature that automatically switches between 60 Hz and 90 Hz depending on the task.

1. Open Settings → System → Screen → Additional screen settings.
2. Select Dynamic Update Frequency (if available).

If this function is not available, you can manually switch the frequency through PowerShell or special utilities, for example, a script for automatic switching to 60 Hz when running from the battery and 90 Hz when connecting to the network:

Example of automatic switching script (requires administrator rights)


$currentFrequency = (Get-CimInstance -Namespace root/wmi -ClassName WmiMonitorBasicDisplayParams).MaxVerticalFrequency




if ((Get-CimInstance -ClassName Win32_Battery).BatteryStatus -eq 1) {




Battery operation – install 60 Hz




&"C:\Path\To\CRU\CRU.exe" /e:"60Hz_profile"




} else {




# Network work - install 90 Hz




&"C:\Path\To\CRU\CRU.exe" /e:"90Hz_profile"




}

💡

If you work frequently on the road, create two profiles in the CRU (60Hz and 90Hz) and switch them manually through the shortcuts on your desktop.This will save battery power without losing comfort when connecting to the outlet.

RedmiBook 9 Pro alternatives with high screen frequency

If the RedmiBook 9 Pro doesn’t meet your screen frequency requirements, consider alternatives from Xiaomi and other brands. In the same price range (40-60 thousand rubles) there are models with 90 Hz, 120 Hz and even 144 Hz:

If you want a Xiaomi laptop, look for the newer RedmiBook Pro series (2022-2023), where 90Hz has become the standard. Xiaomi Book Pro 14/16 is also worth considering – they come with 120Hz screens and Dolby Vision support, making them a great choice for multimedia.

When choosing an alternative, consider not only the screen frequency, but also:

• 🖥️ Type of matrix: IPS or OLED (The second gives more juicy colors, but may be subject to burnout).
• 🎨 100% sRGB is enough for most tasks, but AdobeRGB is needed for design.
• 🔋 Battery capacity: High-frequency laptops usually discharge faster.

Frequent RedmiBook 9 Pro screen issues and their solutions

RedmiBook 9 Pro users sometimes experience screen-related issues, and here are the most common ones and ways to fix them:

1. 90Hz screen flicker: If you manually set 90Hz and notice a flicker, try returning 60Hz or updating your graphics card drivers. Also check the connection cable (if you use an external monitor).
2. Incorrect color display: Go to Settings → System → Screen → Colors and select an sRGB profile. If the problem persists, calibrate the screen using Windows Color Calibration.
3. The screen does not turn on after changing the frequency: As mentioned earlier, wait 15 seconds - Windows should return the previous settings. If not, boot in Safe Mode and delete the created profiles in the CRU.
4. Artifacts or stripes when scrolling: This may be due to drivers or damage to the matrix. Try connecting an external monitor - if the problem persists, the graphics card is to blame.

⚠️ Note: If you have updated Intel drivers or NVIDIA The screen started to glitches (blink, show artifacts), roll the driver back to the previous version. → Video adapters, right-click on the video card and select Properties → Roll back the driver.

If none of these methods worked, the problem may be in the screen itself. In this case, contact the Xiaomi service center. Recall that the warranty on the RedmiBook 9 Pro is 1 year from the date of purchase (if you have a check).

FAQ: Answers to popular questions about RedmiBook 9 Pro

💡

If your RedmiBook 9 Pro initially supports only 60Hz, don’t try to overclock it to 90Hz – this can lead to unstable operation or damage to the matrix.