Did you know that resolution and bottlenecks are two factors that influence the performance of a game? Understanding how these elements relate will allow you to find optimal settings for a smoother and more enjoyable gaming experience.
With the help of this article you will learn in detail the relationship between resolution and bottlenecks. You will also learn how different resolutions affect CPU and GPU performance. All this to help you get the best out of this aspect and thus have a gaming experience that suits your preferences and does not overload your PC hardware.
Resolution is the number of pixels on your monitor screen that determine the level of detail in an image (in this case videogames). This aspect is expressed in width and height, such as 1920 x 1080, which is the resolution my monitor has. The higher the resolution of your monitor, the higher the number of pixels. This can significantly improve the quality in detail and sharpness of the images. Within the gaming world, the most common gaming resolutions are:
1080p (Full HD): 1920 x 1080 pixels
1440p (Quad HD): 2560 x 1440 pixels
4K (Ultra HD): 3840 x 2160 pixels
It is worth mentioning that although higher resolutions provide impressive images this result is only possible thanks to a higher processing power of the CPU and GPU. If you choose to play at higher resolutions such as 1440p or 4K you should know that this will cause your GPU to work harder to render each frame.
So, if your GPU does not have enough power to support this graphics demand, it will most likely not be able to keep up with the high frame rate rendering and will end up producing a bottleneck. This situation can also impair CPU performance by causing this component to try to handle additional graphics data.
Another consequence of this situation is a drop in the frame rate. When your system is experiencing a bottleneck due to an underperforming CPU or GPU and you are running a game with high-resolution images, you may notice significant drops in FPS (frames per second). Stutters and lags during gameplay are the clearest signs that a bottleneck has occurred in your PC's CPU or GPU.
In this regard, many games have resolution scaling options or dynamic resolution settings. Once activated, the game will adjust the resolution so that it reaches a level that allows the GPU to maintain visual fidelity and alleviate bottlenecks.
Achieving optimal gaming performance requires a balance between the CPU and GPU. However, this balance can be disrupted by different screen resolutions. Let's see how these components respond to them:
At lower resolutions like 1080p the number of pixels per frame that the GPU has to render is lower. So, if you complement the effort made by this component with a mid-range or high-end graphics card you will be helping the GPU to process higher frame rates more easily.
Even so, with less work being done by the GPU at this resolution there is a chance that the CPU will end up being a thorn in the side of the game by not being powerful enough to handle the game logic and other processes efficiently. This is something that can happen especially in games that have a pace where fast calculations are required.
Within this resolution both the CPU and GPU are put under moderate stress. This resolution provides a good balance between visual quality and performance for many gaming rigs.
However, it is important that as a gamer you keep a close eye on your system's performance at this resolution because if there is a drop in FPS when using a mid-range configuration, it is likely that one of the components is causing a bottleneck.
If you decide to play a game in 4K resolution like Red Dead Redemption 2 you will be putting a lot of weight on the shoulders of your GPU as it will have to render 4 times more pixels than it would at 1080p resolution. Even for a high-end graphics card to do this is a huge strain.
And while playing a game in 4K may demand more of an effort from the GPU, if the CPU does not provide the hardware with the data it needs fast enough to render, it can cause a bottleneck to form, thus hurting the performance of both components. So as a gamer you will need to make sure that your PC's CPU is powerful enough to support high-resolution gaming.
Keep in mind that an increase in monitor resolution does not always guarantee a better gaming or visual experience. If your system cannot handle 4K effectively due to bottlenecks, the best you can do is to play at a lower resolution with higher FPS to achieve smoother images.