Graphic API Xiaomi Redmi Note 9: Vulkan vs OpenGL ES — What the manufacturer chose and why it matters

If you are the owner of Xiaomi Redmi Note 9 or just interested in the technical nuances of this smartphone, the question is about graphics. API It may seem obscure, but it depends on how effectively your device will work with modern games, augmented reality applications or graphically loaded tasks. API (Application Programming Interface is the middleman between hardware and software that determines how the processor and video accelerator process graphics.

Redmi Note 9 uses MediaTek Helio processor G85, It supports several graphics standards, despite the budget position, but which one is active by default? And can it be changed to improve performance:

• 🔍 What graphics. API Helio supports G85 (Vulkan, OpenGL ES, other)
• 📊 What? API It is used in the Redmi Note 9 out of the box"
• 🎮 Effect of choice API performance in games and applications
• ⚙️ How to manually check and change graphics API on his device

Spoiler: the answer is not as clear as it might seem. Even if the chip specs state all the standards supported, the actual behavior depends on the firmware, the Android version and the optimizations from Xiaomi. API may give rise FPS play-off 15-20%!

1. What is a graphic API Why is it important for the Xiaomi Redmi Note 9?

Graphic API — It is a set of rules by which an application (such as a game) interacts with a GPU (GPU). From choice API dependency:

• 🖥️ Productivity: Some of the API better optimized for multithreading or modern effects (e.g. shadows, reflections).
• 🔋 Energy consumption: inefficient API It can drain the battery faster at high loads.
• 🎯 Support for functions: new API (For example, Vulkan allows you to use technologies that are not available in older ones (for example, OpenGL). ES 2.0).

In the case of Xiaomi Redmi Note 9, the choice API This is especially important because its Helio chipset is G85 It's a budget game, and every percentage of the performance is in the account, for example, in games like this. PUBG Mobile or Call of Duty: Mobile is the right choice API This can mean the difference between 40. FPS And slowing down 30. FPS.

Key graphics API Android-based:

⚠️ Note: Not all games and apps support Vulkan, even if it is available on the system. For example, Fortnite Mobile (before being removed from stores) used OpenGL exclusively ES, Despite the support of Vulkan in most modern smartphones.

2. What a graphic. API It is used by Xiaomi Redmi Note 9 by default

Xiaomi Redmi Note 9 (model) M2003J15SC helio-chip G85) OpenGL activated by default ES 3.2 as the main graphical API However, Vulkan 1.1 is also supported and can be used by individual games or applications if they explicitly request it.

This strategy was not chosen by chance:

• 🛡️ Compatibility: Most mobile games are still optimized for OpenGL ES, especially in the budget segment.
• ⚡ Stability: Drivers for OpenGL ES Helio G85 Better tested than for Vulkan.
• 🔄 Flexibility: Android allows apps to choose for themselves API, So advanced games (such as Genshin Impact) can switch to Vulkan automatically.

To find out which API It is used in a specific application, you can use developer tools or specialized utilities (we will discuss them below). 3DMark or GFXBench is displayed by the current renderer.

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If you notice slowing down in the game, try manually turning on Vulkan in the graphics settings (if you have such an option). PUBG Mobile is done in the Settings section → Graphics → Rendering style.

3. Helio G85: technical features of the graphic core

Chipset MediaTek Helio G85, Redmi Note 9 is equipped with a graphics accelerator ARM Mali-G52 MC2 It's a budget solution, but with some interesting features:

• 🔄 Support for two graphics cores (MC2 in the title), which allows the distribution of the load.
• 🖼️ Hardware support for Vulkan 1.1, OpenGL ES 3.2 and OpenCL 2.0.
• 🎮 MediaTek’s HyperEngine technology, which optimizes gaming performance (e.g. dynamic clock control).

However, there are limitations:

⚠️ Attention: Mali-G52 MC2 Helio G85 Does not support Vulkan 1.2 or newer versions, or some extensions available in flagship chips (e.g, ARM Mali-G78). This means that games with advanced graphics (such as Diablo Immortal) may lack some effects.

For comparison, the table below shows the graphics capabilities of Helio G85 and its closest competitors:

As you can see, Helio. G85 yields to Helio G90T by the number of graphics cores (2 vs. 4), but ahead of the Snapdragon 665 in support of modern graphics cores API architecture ARM Mali.

4. How to check which graphics are API It is used in your Redmi Note 9.

There are several ways to determine the current graphics API:

Method 1: Through the Developer's Settings

Activate Developer Mode (go to Settings → About Phone → MIUI Version and tap 7 times on the build number).

1. Open the settings → Additional → for developers.
2. Find the Debugging item. GPU or the Monitor GPU-rendering.
3. Turn on the option to Display hardware screen updates (this will show the current renderer in some applications).

Method 2: Specialized applications

Install one of these apps from Google Play:

• 📊 GPU Info – Shows the OpenGL version ES Vulkan and supported extensions.
• 🎮 3DMark — The test results indicate the use of API.
• 🔍 DevCheck – displays detailed information about GPU, including supported API.

Method 3: Through ADB (for advanced users)

Connect your phone to your PC and execute the command:

adb shell dumpsys SurfaceFlinger

In the output, find the GLRenderer string – there will be the current renderer (for example, OpenGL) ES 3.2. or Vulkan 1.1).

Activate the Developer Mode|Install GPU Info from Google Play|Run the test in 3DMark|View the supported API DevCheck-->

5. Can I switch manually? API OpenGL to Vulkan (and Worth It)

Technically yes, but with reservations, PUBG Mobile, Call of Duty: Mobile lets you choose API However, you can't systemically replace OpenGL with Vulkan for all applications, it's determined by the application and the drivers.

What can be done:

• 🎮 In games with Vulkan support (such as Genshin Impact), select it manually in the graphics settings.
• 🔧 Use Magisk and the Vulkan Enabler module (requires root rights) to force Vulkan to be activated for supported applications.
• 📲 Update the firmware: in new versions MIUI Redmi Note 9 may have improved drivers for Vulkan.

⚠️ Warning: Forced Vulkan on for unsupported apps can lead to graphic artifacts, crashes or overheating. e.g. Asphalt 9 on Helio G85 Vulkan sometimes causes textures to flicker.

Advantages of switching to Vulkan (if the game supports):

• ⚡ Reducing the burden on CPU (rendering takes over GPU).
• 📈 Enhancement FPS on 10-20% play-optimized.
• 🔋 Lower energy consumption during long sessions.

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Switching to Vulkan only makes sense for games that officially support it, and otherwise it can impair performance or stability.

6. Performance comparison: OpenGL ES vs Vulkan on Helio G85

To understand how different the performance, we tested the Xiaomi Redmi Note 9 in benchmarks and games with different types of products. API. Results (average values for 5 launches):

As you can see, Vulkan has a noticeable performance boost, but not in all scenarios. For example, in GFXBench Aztec Ruins (based on Vulkan), the difference was just a few. +5%, as this benchmark was originally optimized for modern API.

It is also important to consider the temperature regime:

• 🌡️ Using OpenGL ES Helio G85 heats up 42-45°C under load.
• 🔥 With Vulkan, the temperature drops to 38-41°C through more efficient load distribution.

7.Graphic problems and bugs API Redmi Note 9

Despite the benefits of Vulkan, Redmi Note 9 users sometimes face challenges:

• 🐞 Artifacts in Games: In Free Fire or Mobile Legends, forced inclusion of Vulkan can cause textures to flicker or “teared” shadows.
• 🔄 Falls FPS: In some scenes (for example, rain in the rain) PUBG Mobile) Vulkan is making drawdowns instead of increment.
• 📵 Incompatibility: Older games (e.g. Minecraft) PE Up to version 1.16, you may not run from Vulkan.

Decisions:

• 🔧 Recoil to OpenGL ES In the game settings, if you notice bugs.
• 📲 Update the drivers GPU through settings → The phone. → Updating the system.
• 🚫 Turn off optimization. MIUI for games Settings → Special facilities → Optimization of games (sometimes it conflicts with Vulkan).

⚠️ Warning: If after switching to Vulkan, the game starts to slow down, check the anti-aliasing settings.In some cases, Vulkan forcibly turns on 4x MSAA, What eats productivity on Helio G85.

8.The future of graphics API: We are waiting for updates to the Redmi Note 9

Xiaomi Redmi Note 9 was released in 2020, and since then MediaTek has released several updates for Helio. G85, But radical changes in support of graphics API Don't wait. Here's what we know:

• 🔒 Vulkan 1.2 will not be supported — Mali-G52 MC2 hardwarely incapable of doing so.
• ⚡ Optimization of drivers for existing API (For example, the best support for Vulkan extensions for games).
• 📱 New versions of Android (like Android 14) may bring compatibility improvements, but not new ones API.

If you are critically important to support modern graphics standards, it is worth considering smartphones with newer chipsets. 2021-2022 years (e.g. Snapdragon) 7 Gen 1 or Dimensity 900), where Vulkan is available 1.3 OpenGL ES 3.2+.

For Redmi Note 9, the following recommendations are:

• 🎯 Use Vulkan only in supported games.
• 🔄 Regularly update the firmware through Settings → Updating the system.
• 🛠️ When artifacts appear, roll back to OpenGL ES.

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The Redmi Note 9 remains a good choice for budget gaming, but its graphics capabilities are limited by the hardware platform. API for each specific game.

FAQ: Frequent questions about graphics API Xiaomi Redmi Note 9