Xiaomi Redmi Note 9: screen refresh rate and processor clock speed

The question of how many hertz in Xiaomi Redmi Note 9, often arises among users who choose a smartphone to play or watch video content. the frequency of screen updates directly affects the smoothness of animations interface and the perception of dynamic scenes. in this device, the manufacturer standard for the budget segment frequency, which is important to consider before buying.

In addition to the screen's hertzing, users are interested in the processor clock speed that determines the speed of calculations. The smartphone is equipped with a MediaTek Helio G85 chipset that operates in a certain frequency range. Understanding these characteristics will help you better manage the resources of the gadget and expect adequate performance from it in various tasks.

In this article, we will discuss in detail the technical details of the display and the processor part, you will learn why the screen works at 60 Hz, how this affects autonomy and whether these parameters can be software modified, and also touch on the topic of hertz sensor, which often remains in the shadows, but is critical for gamers.

Technical characteristics of the display Redmi Note 9

The screen is made using technology IPS LCD with a diagonal of 6.53 inches. the resolution of the matrix is 2340 Γ— 1080 pixels, which provides high image density. However, the main parameter that worries many is the refresh rate of frames, which in this model is fixed at 60 Hz.

This means that the image on the screen is updated 60 times per second, and for most everyday tasks, such as reading news or watching videos, this value is quite enough, the picture looks clear, and the fonts are readable thanks to the quality of color calibration from the manufacturer.

⚠️ Warning: Attempts to change the refresh rate of the screen through hidden engineering menus can lead to unstable system operation or complete failure of the matrix.

It’s worth noting that in 2020, when the model was released, 60Hz was the industry standard for the middle class. Higher values like 90Hz or 120Hz began to appear en masse in this price category only in subsequent generations of devices.

CPU clock speed and performance

At the heart of the smartphone is the MediaTek Helio G85, an eight-core 12-nanometer processor, which has two core types: powerful and energy efficient, allowing it to be flexible and manage tasks and save battery life.

The maximum clock speed of powerful Cortex-A75 cores reaches 2.0 GHz. the Energy-efficient cores of Cortex-A53 operate at a frequency of up to 1.8 GHz. This configuration provides a good speed of application launch and fairly smooth multitasking, provided that heavy games are not running.

πŸ“Š How important is the screen refresh rate to you?
60 Hz is enough.
At least 90 Hz.
I only play 120 Hz.
Ignoring.

The Mali-G52 MC2 graphics accelerator also has its own frequency limits, which affects the maximum graphics settings in games. For comfortable gaming, you often have to reduce the quality of textures to ensure a stable FPS, which will still be limited to 60 frames per second due to the screen.

πŸ’‘

To improve performance in games, close the background apps through the recent task menu and enable Game Turbo mode in the security settings.

Sensor survey frequency and responsiveness

The feature that is rarely mentioned in the specifications is touchscreen survey frequency. In the Xiaomi Redmi Note 9, this figure is 180 Hz. This means that the sensor reads the position of the finger 180 times per second, which is higher than the refresh rate of the image.

A higher hertz touchscreen provides lower input latency. In games, especially first-person shooters, this gives a slight advantage in reaction speed. However, for the average user, the difference between 180 Hz and the standard 120 Hz can be almost invisible.

It's important to understand the difference between the hertz matrix and the hertz sensor. If the matrix draws 60 frames, the sensor can read 180 touches, but the visual response will still be limited by the screen's capabilities, and this creates a certain perceptual smoothness.

Comparison with competitors and older models

To better understand the Redmi Note 9’s place in the market, it’s worth comparing it to other devices in the lineup, with many users wondering if it makes sense to overpay for the Pro version or look toward other brands at a similar price.

ModelScreen typeFrequency of updateProcessor
Redmi Note 9IPS LCD60 HzHelio G85
Redmi Note 9 ProIPS LCD60 HzSnapdragon 720G
Redmi Note 10AMOLED60 HzSnapdragon 678
Redmi Note 11AMOLED90 HzSnapdragon 680

As you can see from the table, even more expensive models from the period, such as the Note 9 Pro, are also limited to 60 Hz. The transition to 90 Hz and higher in the Redmi lineup came much later.

Why is the Note 9 not 90Hz?
The performance of the Helio G85 processor would not allow a stable rendering of 90 frames per second in the interface and games without compromising autonomy.

The impact of hertzovka on the autonomy of work

The low refresh rate of 60 Hz has its positive aspects, especially in the context of power consumption. The screen is one of the main consumers of energy in any smartphone. The less updated the picture, the less resources required by the GPU and display controller.

Thanks to this, the Redmi Note 9 with its huge battery on 5020 The mAch is showing impressive results in autonomy, and it's a two-day device with moderate use. 90 or 120 Hz, the working hours would be reduced by 15-20%.

For users who prioritize long-term, no-recharge work over smooth animations, the current configuration is optimal. You get a big screen and long run time, sacrificing only the visual smoothness of scrolling.

πŸ’‘

60 Hz is a compromise that allowed you to install a battery of increased capacity and maintain an affordable price of the smartphone.

Can I overclock the screen or processor?

Technologically advanced users are often interested in overclocking. In the case of the Xiaomi Redmi Note 9, software overclocking is impossible without replacing the hardware.

As for the processor, there are methods of overclocking through root rights and special applications, but they are fraught with high risks. Increased clock speed will lead to overheating, trottling and rapid wear of the battery.

β˜‘οΈ Risks of overclocking a smartphone

Done: 0 / 4

The standard MIUI means you can't change the hertz frequency. There are no hidden options on the developer menu to switch the screen modes. Any promises on the Internet about "secret codes" to activate 90 Hz are myth.

FAQ: Frequently Asked Questions

Does the Redmi Note 9 support HDR technology?
No, the display does not support HDR10 or Dolby Vision standards. Content will be displayed in the standard dynamic SDR range, which is typical for IPS screens in this price segment.
Is there a protection against flickering (DC Dimming)?
There's a Vision Protection mode in the screen settings that lowers the brightness and changes the color temperature, but there's no full DC Dimming to eliminate PWM flickering, because it's AMOLED technology, and here's IPS.
Can I install 120 Hz through custom firmware?
No. Update frequency is a physical characteristic of the matrix. No firmware can make the screen physically refresh more often than its design allows, and the best you can do is optimize the animations of the interface.
What is the actual brightness of the screen in the threads?
Peak brightness is about 450 nits. That's enough for indoors, but in direct sun, readability can drop, and you have to look for shade or cover the screen with your palm.
Does the processor frequency affect the charging speed?
No, the charging speed is determined by the power controller and protocol support (in this case, 18W Quick Charge), but when the processor is active at high frequencies during charging, the phone can heat up, which will slow down the process.