When gaming, many players focus on GPU performance, but low CPU usage when gaming can be a serious problem. If your CPU isn’t being utilized efficiently, it can lead to performance bottlenecks, low frame rates, and overall poor gaming experience. But why does this happen, and how can you fix it?
Low CPU usage when gaming can be caused by GPU bottlenecks, power settings, or background apps. Check CPU affinity, update drivers, and adjust in-game settings to balance CPU and GPU usage. Ensuring proper cooling and performance mode can also help.
This guide will explore the causes of low CPU usage when gaming, how to check CPU performance, and provide practical solutions to ensure your gaming setup runs at peak efficiency.
Understanding CPU Usage in Gaming!
The CPU (Central Processing Unit) plays a vital role in gaming, handling tasks such as physics calculations, AI processing, and general game logic. However, games rely more on the GPU (Graphics Processing Unit) for rendering graphics. Ideally, both components should work in harmony, but low CPU usage when gaming might indicate an issue.

In most modern games, CPU usage should range from 30% to 70%, depending on how well the game utilizes multi-core processing. If you notice low CPU usage when gaming (below 20%), your system may not be performing optimally.
Causes of Low CPU Usage When Gaming!
1. GPU Bottleneck:
If your GPU is too weak compared to your CPU, it may not feed enough data to the processor, causing low CPU usage when gaming. This happens when the CPU is waiting for the GPU to catch up.
2. Power Settings Limiting CPU Performance:
Windows power settings may restrict your CPU’s full potential. If your system is set to “Power Saver” mode instead of “High Performance,” it can cause low CPU usage when gaming.
3. Game Not Optimized for Multi-Core Processing:
Some games are designed to use only a few CPU cores, leading to low CPU usage when gaming. Older or poorly optimized games may not take full advantage of modern multi-core processors.
4. Background Applications Consuming Resources:
Applications running in the background, such as web browsers, Discord, or recording software, can limit available CPU power, resulting in low CPU usage when gaming.
5. Outdated CPU Drivers:
If your chipset and processor drivers are outdated, they may not be optimized for the latest games, causing low CPU usage when gaming.
6. Hardware Limitations:
An older CPU may not have enough cores or threads to handle modern gaming workloads, leading to low CPU usage when gaming and poor performance.
Can a GPU Bottleneck Cause Low CPU Usage in Games?
Yes, a GPU bottleneck can lead to low CPU usage when gaming. A bottleneck occurs when one component, such as the GPU, is maxed out while the CPU remains underutilized. This can happen if your CPU is too powerful compared to your GPU, meaning the GPU struggles to keep up, leaving the CPU with less work to do.
To identify a GPU bottleneck, monitor GPU and CPU usage using tools like MSI Afterburner. If your GPU is at 99-100% usage while your CPU remains below 50%, your system is likely GPU-bound. This often occurs when running games at high resolutions (1440p or 4K), where the GPU handles more processing while the CPU has less work.
To fix a GPU bottleneck, you can lower graphical settings like textures, shadows, and anti-aliasing to reduce GPU load. Alternatively, upgrading your GPU to a more powerful model can balance the workload between your CPU and GPU, leading to better performance and higher CPU utilization.
How to Check CPU Usage When Gaming?
To monitor your CPU usage:
- Task Manager: Press Ctrl + Shift + Esc, go to the Performance tab, and check CPU usage.
- Third-Party Tools: Apps like MSI Afterburner or HWMonitor provide real-time CPU usage metrics.
- In-Game Performance Overlay: Some games include built-in performance tracking tools.
If your CPU usage is consistently low, it’s time to apply some fixes.
How to Increase CPU Usage for Better Gaming Performance
If you notice low CPU usage when gaming, optimizing your system can help improve performance. First, ensure that your CPU is not being limited by power settings. Go to Control Panel > Power Options and set your power plan to High Performance. This allows your CPU to run at its full potential without power-saving restrictions.

Another factor to consider is CPU affinity. Some games may not be utilizing all available CPU cores. Open Task Manager, go to the Details tab, find the game’s process, right-click, and select Set Affinity. Ensure that all CPU cores are checked so the game can utilize them properly.
Updating your graphics drivers and chipset drivers can also help. Outdated drivers may cause inefficient CPU-GPU communication, leading to low CPU usage. Always download the latest drivers from NVIDIA, AMD, or Intel based on your hardware.
How to Fix Low CPU Usage When Gaming?
1. Adjust Power Settings:
- Open Control Panel > Power Options > Set to “High Performance.”
2. Update CPU Drivers and BIOS:
- Download the latest drivers from Intel or AMD.
- Update BIOS for improved CPU efficiency.
3. Optimize In-Game Settings:
- Lower GPU-bound settings (like resolution and textures).
- Increase CPU-intensive settings (like draw distance and physics).
4. Close Unnecessary Background Apps:
- Disable startup programs in Task Manager.
- Use the “End Task” feature for high-usage applications.
5. Enable High-Performance Mode:
- Set CPU affinity in Task Manager to prioritize gaming.
6. Check for Thermal Throttling:
- Monitor CPU temperatures using HWMonitor.
- Clean CPU fans and reapply thermal paste if overheating occurs.
FAQs:
1. Why is my CPU usage low when gaming?
It could be due to a GPU bottleneck, power-saving settings, outdated drivers, or inefficient game optimization.
2. How do I increase CPU usage for gaming?
Try updating your drivers, tweaking in-game settings, enabling high-performance mode, and closing unnecessary background apps.
3. Does low CPU usage affect FPS?
Yes, low CPU usage when gaming can lead to inconsistent frame rates and stuttering, especially in CPU-heavy games.
4. Should I upgrade my CPU or GPU for better performance?
If your CPU usage is too low and your GPU is underutilized, upgrading the CPU might help.
5. Can low CPU usage cause lag in games?
Yes, if your CPU is not processing game data efficiently, it can result in lag, stuttering, and slow response times.
Conclusion:
Ensuring balanced CPU usage is crucial for a smooth gaming experience. By following these fixes, you can improve performance, eliminate low CPU usage when gaming, and make the most out of your hardware.