Every task on your computer, from the calculator to graphics-heavy games, is processed by the CPU effect FPS. While graphics-intensive calculations generally rely on a GPU, the CPU also handles some tasks to run these games. Therefore, it is common for the CPU to affect the number of frames per second (FPS).

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There are many aspects when it comes to CPU and it affects FPS. It mainly depends on other components like RAM speed and graphics card.

This article provides a detailed guide on how the CPU affect FPS in the game.

What does the GPU do when gaming?

chart chart

Before we discuss how the CPU affects FPS, let’s first discuss the GPU.

The GPU in your system generates all the images of the object when you run a game. Additionally, the GPU takes care of the physics, hitboxes, shaders, object positions, lighting effects, textures, reflections, visual effects, and much more for the object you create.

A more powerful GPU means you can create numerous objects, process your polygons, create physics, and perform all of the above tasks with ease. And that’s why you see a huge performance boost when you upgrade a GPU.

The type of GPU you have also has a huge impact on the FPS you get in games. If your computer runs on an integrated GPU, it can run just as efficiently as a dedicated one.

What does the CPU do when gaming?

What is the CPU doing?

Now you might be thinking, if the GPU is doing all these things, what is the CPU doing that affects FPS? Well, the CPU takes care of the movement of these graphical objects.

Every object consists of edges and corners. When an object moves, the CPU changes the positions of the vertices. And then you see the object moving on your screen. In addition, the CPU also processes game logic, which means it processes “if this, then that” logic.

For example, if you press the W key, your character will advance through the game. Also, when you enter a certain region in your game world, a cutscene will start. The CPU handles all of this type of logic.

When the CPU processes this game logic, it sends the data to the GPU to generate the desired object along with its locations, physics, lighting, textures, reflections, and more.

Therefore, both the CPU and the GPU play a crucial role in the FPS of your game. The CPU handles the logical side of a game while the GPU handles the graphics part. So your game needs your CPU and GPU to run at the same speed to achieve the desired frame rates.

Does CPU affect FPS?

Game and fps

Now back to the actual question, does CPU affect FPS? Since the CPU handles all of your game logic, the processing power of a CPU affects FPS. And upgrading to a modern CPU can give you a slight performance boost in games.

Also, the answer to the question also depends on the games you play. Games like ARMA 3, GTA 5 Online, Far Cry 5, Microsoft’s Flight Simulator 2020, etc. heavily dependent on the CPU. So even if you use a high-end GPU, you won’t get many frames unless you have a more powerful CPU. In this case, the CPU has a huge impact on the FPS.

However, some games rely on the computing power of the GPU. In this case, you can get decent FPS with a less powerful CPU

Does upgrading CPU improve FPS?

However, there are many factors that determine whether a CPU upgrade will improve performance. Bottleneck is an important factor that determines whether a CPU upgrade will affect FPS.

A bottleneck occurs when one part works much faster than others. This causes faster processing parts to wait for slower processing parts.

• GPU bottleneck
• GPU bottleneck example

If you have a new generation CPU and an older or slower GPU, you will suffer from a GPU bottleneck in terms of GPUs. This means that the CPU has to wait for the GPU to complete its process before it can send more data. In this case, your CPU will not work as efficiently as it should.

When your PC suffers from a GPU bottleneck, you will see the CPU usage go up and down continuously after a certain interval. This means that the CPU is waiting for the GPU to do its job. And speaking of the GPU, it will constantly use all your resources while gaming. If your computer is experiencing a GPU bottleneck, the CPU upgrade will not affect FPS.

Cpu bottleneck

CPU bottleneck example

If you use an RTX 3090 (new generation GPU) in combination with Intel i3 6th generation (old generation CPU), the computer will experience a CPU bottleneck. This means that the CPU executes tasks more slowly compared to the GPU. And because of this, the GPU will have a lot of idle time, rendering all that power useless.

When the PC suffers from a CPU bottleneck, the GPU usage will rise and fall in interval, which means the GPU is waiting for the CPU. Again, you will notice that the CPU usage is constantly high.

So if you run into a CPU bottleneck, upgrading your CPU to a newer version will give you an FPS boost. To keep up with your GPU, your CPU needs to be faster for better frames

Conclusion

In short, the CPU affects your in-game FPS, and a newer generation CPU will give you better gaming performance than an older one. However, there are many things to consider before upgrading a CPU to increase FPS.

If your computer is experiencing a GPU bottleneck, upgrading to the latest CPU will not affect FPS. However, if the PC has a severe CPU bottleneck, upgrading the CPU will improve your in-game FPS.