CPU, the computer’s brain, handles all the tasks your computer system performs. Moreover, it helps the other components to perform their functions. On the other hand, the Graphics processing unit (GPU) controls the resolutions of your computer, which is an entirely different component.
In this article, we will understand the term “Resolution” and the piece of computer hardware this term is associated with. Not only that, but we will also understand the relationship between the resolution and CPU. So, let’s start with answering your question, “Does resolution affect CPU?”
Does Resolution Affect CPU?
The resolution affects the CPU if the graphics card of your PC or laptop is less powerful, and the CPU helps it do the graphics-based math for running games and apps. This is because more resolution means there are more pixels to process. The CPU has to do this task and execute other instructions.
Resolution is the maximum number of pixels that a display monitor has. Pixels are nothing but a single color. The images are the combinations of these colors in a specific order. A 1920 x 1080 p resolution indicates that the display has 1920 horizontal pixels and 1080 vertical pixels.
On the other hand, the CPU is the brain of any computer system, as it controls and executes apps and games with different resolutions. If no graphics drivers are installed, then it is the responsibility of your operating system, such as Windows 10/11, to detect the resolution of your display monitor and install drivers.
- Effect on RAM
The built-in graphics card uses the system memory because they do not have a separate memory. In this case, the resolution affects the CPU along with the RAM. It is because the graphics-based information is stored in the main memory, and the CPU controls it into RAM and clears it from the RAM.
- Effect on CPU
Changing the resolution on a computer with an integrated graphics processor will impact the processor. A CPU with integrated graphics must perform complex floating-point calculations on graphical data and control the addressing and other logical functions.
- Effect on FPS
When the resolution affects your PC or laptop CPU, your frame rate decreases to a noticeable limit. As a result, you can not enjoy your gameplay at all. Not only that, but your videos also run at a slower FPS (frames per second), and when it is a movie, it becomes very irritating as the action scenes are missed.
A computer system with a low-powered CPU and a very small GPU is not meant to be used for extreme gaming, video editing and exporting, 3D rendering and animation, etc. It is because these tasks require more GPU power than CPU. After all, it is defined in most apps and games during development.
Suppose you are using your computer system for a high-end task and experiencing your slow PC performing poorly. Then, we recommend installing a graphics card because the CPU is not for running graphics-based software. It also has no separate VRAM for tasks related to graphics.
Does Resolution Affect PC Performance?
Resolution affects PC performance, especially when multiple display monitors are connected to your computer system. In this case, your PC tries to provide a display to all monitors, but the CPU and GPU don’t allow it. It is because one of them or both are of low power.
The screen resolution affects PC performance because the CPU has to work on great texture details and run other apps simultaneously. During this, it is also busy addressing the RAM for fetching the graphics-based data from it and storing the processed results on it and the storage media.
That is tedious work with a heavy burden on a processor or CPU (central processing unit). We recommend you install a powerful GPU (graphics processing unit) for graphics-intensive apps and games. In this way, not only will your PC’s performance improve, but it will also prevent your CPU from overloading and burning.
Is 1440p or 1080p better for FPS?
Regarding gaming, 1080p is considered better than 1440p because it gives you more FPS, hence a better gaming experience. In addition to this, if you are a video streamer, then we recommend 1080p because, in this case, your video will be very smooth on the web-based video player on the internet.
It is all so because when your CPU processes 1080p, it has to work less than 1440p. On the other hand, 1440p will reduce your frame rate or FPS (frames per second) not only because there is more graphical data to process but also because there will be more data on the internet to transfer.
But suppose you want to buy a new monitor to set up a dual or multi-monitor system and select between 1440p or 1080p. In that case, we recommend purchasing a 1440p monitor of at least 27″ because it can run 1080p and give you way better video quality.
The refresh rate of 1440p display monitors is 144Hz, while the 1080p monitor has a maximum frequency of 240Hz. A 1080p monitor is suitable for a medium-end PC with such a CPU, but 1440p requires a high-end CPU. Similarly, 1080p is affordable, especially when installing multiple display monitors on your PC.
Does Lowering Resolution Decrease CPU Usage?
Lowering resolution decreases CPU usage if your CPU runs games, videos, and apps. It is because, on more resolution, the CPU installed in your computer system has to work a lot compared to its working on less resolution. The only hardware that can share its load is the GPU.
Installing a better GPU will decrease CPU usage; hence, we recommend you install a graphics card that can share much of the graphics-based load with your PC CPU. Additionally, graphics-intensive games and apps allow you to choose between CPU and GPU to perform a specific task, decreasing CPU usage.
If you are a Windows operating system user and want to check your CPU usage, right-click on the taskbar and select Task Manager. The task manager window with multiple tabs will pop up where you need to switch to the Performance tab. You can see its usage after choosing the “CPU” from the list.
Does Increasing Resolution Reduce CPU Bottleneck?
When a small graphics card is installed in your computer system, and the workload of graphical processing data is on your CPU, then CPU bottlenecks can occur. As a result, the performance of your game or app will stall. Also, you cannot enjoy your gameplay or graphics-related work.
Hence, the increasing resolution will not reduce bottlenecks. Instead, it will increase them in the case discussed above. If you have been experiencing CPU bottlenecks, you must upgrade your graphics card or GPU. It will not only improve the performance of your PC, but it will also increase your productivity.
The other reason for CPU bottlenecks can be the incompatibility of your CPU. Yes, when your CPU is lower than your GPU or graphics card, then you will experience bottlenecks. In this case, we recommend upgrading your central processing unit (CPU). As a result of it, you will experience better PC performance.
Does Higher Resolution Require Better CPU?
If you are making your CPU perform high-resolution graphics-related tasks, such as video exporting, rendering, gaming, etc., you are overloading your CPU. First, it’s not your processor’s job to handle graphics. That’s what a GPU is for.
Secondly, a higher resolution requires a better CPU. That is because the processor has to manage, execute, and control other tasks and perform complex calculations on graphical data. As a result, the graphic quality and frame rate decrease, which is not good for a computer system and its CPU.
A CPU responsible for handling high-resolution games and apps becomes overheated. It turns out that there is a proper cooling method, such as a fast liquid cooling system. Hence, instead of buying a new CPU, we recommend purchasing a new graphics card for handling your graphics-related processes.
What Happens If Resolution Is Too High?
If the resolution is too high, different phenomena can happen based on different conditions. If a very small GPU is installed in your computer or laptop and the resolution is too high, your CPU will start performing graphics-based tasks. As a result, the performance of your computer system will degrade.
Also, it will occupy more RAM for the graphical data, and your operating system, games, and apps will become slow. If you intend to store an image or video with high resolution, it will take up more space on your storage, such as HDD or SSD. We recommend you use GPU for high resolution.
If the resolution is too high, your hardware, such as CPU, RAM, or GPU, works on its maximum limits. As a result of it, they become overheated. Without a proper and efficient cooling system, your computer system hardware is at risk of becoming out of order. It is useless to use a small monitor for high resolution.
CPU bottlenecks are common in computer systems, especially when the graphics card or GPU is too small. The increasing resolution will not reduce CPU bottlenecks. Instead, it will increase them. You must upgrade your GPU or central processing unit (CPU) to handle higher-resolution graphics and apps.
Hey, I’m Hammad. I write for this website to help you with the IT advice about PC, RAM, CPU, Motherboard, PSU, and other PC components.
I will provide detailed guides with images, and explain step by step so you can understand the process. Check all my articles here.