How to Fix High CPU Usage but Low GPU Usage in Games

As a passionate gamer, there’s nothing more frustrating than encountering performance issues while playing your favorite games. One such perplexing issue that has left many gamers scratching their heads is the case of high CPU usage but low GPU usage. It’s a problem that can severely impact your gaming experience, causing frame drops, stuttering, and even crashes. In this article, we’ll dive deep into this issue, exploring the possible causes, solutions, and sharing personal experiences along the way.


Understanding the Basics

Before we delve into the intricacies of this issue, it’s essential to understand the roles of the CPU and GPU in gaming.


CPU (Central Processing Unit)

The CPU is often referred to as the brain of your computer. It handles a wide range of tasks, including running the operating system, managing background processes, and executing game logic that doesn’t rely heavily on graphics. Games require a significant amount of CPU power for tasks like AI calculations, physics simulations, and game mechanics.


GPU (Graphics Processing Unit)

The GPU, on the other hand, is designed to handle graphics-related tasks. It’s responsible for rendering the game’s visuals, including textures, shaders, and 3D models. Modern games demand a lot from the GPU, especially when it comes to high-quality graphics and resolutions.


The Dilemma: High CPU Usage, Low GPU Usage

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Now that we have a basic understanding of CPU and GPU roles in gaming, let’s address the main issue at hand: high CPU usage but low GPU usage. This situation can be perplexing because, ideally, you want both components to be utilized effectively for the best gaming experience.

You can read: 12 Best Free Software For CPU, GPU, RAM Stress Test For PC


Personal Experience

Before we explore potential causes and solutions, let me share my personal experience with this issue.

I recently upgraded my gaming rig with a powerful GPU, hoping to enjoy a seamless gaming experience with high settings and smooth frame rates. To my surprise, in many games, I noticed that my CPU usage was consistently high, often hitting 90% or more, while my GPU usage remained relatively low, hovering around 50-60%. This imbalance was causing significant performance issues, even though I had a beefy GPU ready to take on the visual demands of modern games.


Possible Causes

To tackle the high CPU usage but low GPU usage problem, it’s crucial to identify its potential causes. Several factors can contribute to this issue, and understanding them is the first step toward finding a solution.


1. CPU-Bound Games

Some games are inherently CPU-bound, meaning they rely heavily on the processor for various calculations and game logic. In such cases, even a high-end GPU might not be fully utilized because the CPU is the bottleneck.


2. Poorly Optimized Games

Game optimization varies widely from one title to another. Poorly optimized games can put excessive strain on your CPU, resulting in high usage, while the GPU may not be fully engaged due to inefficient coding.

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3. Background Processes

Background processes running on your computer can consume CPU resources. It’s essential to close unnecessary applications and processes before gaming to free up CPU capacity for your game.


4. Graphics Settings

Your in-game graphics settings can significantly impact CPU and GPU usage. If you have settings turned up too high for your hardware to handle, it can lead to high CPU usage as the CPU struggles to keep up with rendering demands.


5. CPU Bottleneck

In some cases, your CPU might be outdated or not powerful enough to keep up with your GPU, leading to a CPU bottleneck. This bottleneck can limit the GPU’s ability to reach its full potential.


6. Driver Issues

Outdated or incompatible graphics card drivers can also contribute to this problem. Ensuring you have the latest GPU drivers installed is crucial for optimal performance.


Investigating and Resolving the Issue

Now that we’ve identified potential causes, it’s time to investigate and resolve the high CPU usage but low GPU usage issue.


1. Check In-Game Settings

Start by reviewing your in-game graphics settings. Lowering certain settings like shadows, textures, and anti-aliasing can reduce the CPU load while allowing your GPU to work more efficiently. Experiment with different settings to find the right balance between visual quality and performance.


2. Monitor Background Processes

Use the Task Manager (Ctrl+Shift+Esc) to monitor background processes. Close any unnecessary applications and processes running in the background. You can also set your computer to a “Gaming Mode” or “High-Performance Mode” to allocate more resources to your game.

Read also to fix it: Best CPU Temp Monitor Tools for Free to Download For Windows

3. Update Graphics Drivers

Ensure that your GPU drivers are up to date. Visit the official website of your GPU manufacturer (NVIDIA, AMD, or Intel) to download and install the latest drivers for your graphics card. Outdated drivers can lead to performance issues.


4. CPU Bottleneck

If you suspect a CPU bottleneck, consider upgrading your processor to a more powerful one that can better complement your GPU. This can be a costly solution, so weigh your options carefully and consider consulting with a professional if needed.


5. Game Patches and Updates

Keep an eye on game patches and updates. Developers often release patches to improve game performance and optimization. Make sure your game is up to date to benefit from these improvements.


6. Overclocking

If you’re comfortable with overclocking, you can try overclocking your CPU within safe limits. Overclocking can provide a performance boost and help alleviate CPU bottlenecks, but it should be done cautiously to avoid overheating or stability issues.


How to Fix High CPU Usage but Low GPU Usage in Games


Are you experiencing the frustrating dilemma of high CPU usage and low GPU usage while gaming? Don’t worry; we’ve got you covered. In this guide, we’ll walk you through a step-by-step approach to fix this issue and enjoy a smoother gaming experience.


1. Check GPU Drivers

Before diving into more complex solutions, start by ensuring your graphics card drivers are up to date. Visit the official website of your GPU manufacturer (NVIDIA, AMD, or Intel) and download the latest drivers for your graphics card. Outdated drivers can lead to performance issues, and updating them might resolve the problem.


2. Tweak In-Game Settings

Adjusting your in-game graphics settings can have a significant impact on CPU and GPU usage. Lower settings for options like shadows, textures, and anti-aliasing can reduce CPU strain, allowing your GPU to work more efficiently. Experiment with different settings to find the right balance between visual quality and performance.


3. Patch the Affected Games

Game developers often release patches and updates to improve performance and optimize their games. Ensure that the games you’re experiencing issues with are up to date. These updates may contain critical fixes that can help resolve the high CPU usage problem.


4. Disable Third-Party Apps Active in the Background

Background processes and applications can consume CPU resources, negatively impacting your gaming experience. Use the Task Manager (Ctrl+Shift+Esc) to monitor and close unnecessary applications and processes running in the background. This can free up valuable CPU capacity for your game.


5. Disable All Power-Preserving Modes

Windows often employs power-preserving modes to save energy, but these modes can limit the performance of your CPU and GPU. Disable power-saving features in your computer’s settings and set it to a high-performance mode to ensure your hardware operates at its best during gaming sessions.


6. Enable XMP in BIOS/UEFI

XMP (Extreme Memory Profile) is a feature in your computer’s BIOS or UEFI settings that can optimize your RAM performance. Enabling XMP can lead to better overall system performance and help alleviate CPU bottlenecks. Be cautious and refer to your motherboard’s manual for guidance on enabling XMP.


7. Use 4 Cores If Possible and Try Overclocking

If your CPU supports it, try setting your game to utilize only four CPU cores. Some games may not benefit from using all available cores and may perform better with a limited number. Additionally, consider overclocking your CPU within safe limits to gain a performance boost, but make sure to monitor temperatures to avoid overheating.


8. Reinstall the Game

Sometimes, game files can become corrupted or fragmented, leading to performance issues. Uninstall the problematic game and then reinstall it from a fresh download or installation media. This can often resolve issues related to game files.


9. Reinstall Windows

As a last resort, if none of the previous steps provide a solution, you may consider reinstalling Windows. This drastic measure can eliminate any underlying system issues that might be causing the problem.


10. Close the Google Chrome Browser

Ensure that you close resource-intensive applications like Google Chrome while gaming, as it can consume significant CPU and RAM resources. Closing Chrome can free up system resources for your game.



The issue of high CPU usage but low GPU usage in gaming can be frustrating, but it’s not insurmountable. By understanding the underlying causes and implementing the right solutions, you can significantly improve your gaming experience.

In my case, a combination of lowering graphics settings, closing background processes, and updating GPU drivers helped balance the CPU and GPU usage, resulting in smoother gameplay and higher frame rates. Overclocking the CPU provided an additional performance boost.

Remember that each gaming setup is unique, and the effectiveness of these solutions may vary. Experiment with different settings and optimizations to find what works best for your specific hardware and games.

Additionally, keeping your system up to date and monitoring for game patches and updates is crucial for long-term performance.

Ultimately, while high CPU usage can be a concern, it’s not always a problem if your gaming experience remains smooth and enjoyable. Striking the right balance between CPU and GPU usage is key to maximizing the potential of your gaming rig and immersing yourself in the virtual worlds you love.

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