What is bottleneck ? What we can do.

In the context of a PC, a bottleneck refers to a component that limits the potential of other hardware due to differences in the maximum capabilities of the two components.

A bottleneck isn’t necessarily caused by the quality or age of components, but rather their performance. Bottlenecks aren’t unique to high-end systems either; balance is equally important in systems with more entry-level hardware.

Finding a Compatible CPU and GPU

Bottlenecks are not exclusive to the CPU and GPU, but the interplay between these two components illustrates how a bottleneck can impact a system.

The central processing unit (CPU) is responsible for calculating operations like physics, audio, netcode, positional data, and countless other systems in modern PC games. It also sends rendering instructions to the graphics processing unit (GPU).

These instructions from the CPU contain everything the GPU needs in order to know what to render, including shaders, textures, and other visual data. They are then executed by the GPU, resulting in the image you see onscreen. If the GPU is rendering these instructions faster than the CPU can provide them, the GPU will remain idle until the next set of instructions is ready.

This means the GPU is not operating at peak performance, and this can result in fewer frames per second being rendered. This is a bottleneck in that the performance level of the GPU is being restrained by the limitations of the CPU.

The same can happen in the opposite direction. If a powerful CPU is sending instructions to the GPU faster than the GPU can render, the capabilities of the CPU are being limited by the slower speeds of the GPU. The system would perform better with a CPU and GPU that are more closely matched in performance capability.

Again, almost any hardware can contribute to a bottleneck, not only the CPU and GPU. Ideally, system hardware will work as close to maximum performance as possible, and one link in the hardware chain will not detrimentally impact the others.

CPU BOTTLENECK

CPU bottleneck is you’ll find in PC games which is a very common bottleneck, which means your CPU will limit the possible number of frames being pulled from your GPUs performance. The simplest explanation for how this happens is that your CPU isn’t just powerful enough to keep up with your GPU.

Let’s take an example, let’s say that we have a game being rendered at 60 frames per second which is equal to one frame every 16.6 ms. The CPU has many other tasks too whether running in the background or other applications. CPU has to prepare to send a draw call to the GPU which means it is sending some data such as texture and shader details whilst also rendering objects and buffers on the next frame which is being rendered. The GPU does its work by rendering this frame and it’s then displayed on to your Monitor when it receives the next frame which is to be rendered and while that’s rendering the CPU is already on the next frame for the GPU so here we have no bottleneck and that’s because the CPU is preparing the frames faster than the GPU could able to render them.

In case, the                                                                              CPU is weak then the GPU will be rendering frames faster than the CPU can prepare them and yes there’s the bottleneck. If your CPU is performing equal to the GPU then there’s no bottleneck.

GPU BOTTLENECK

While CPU Bottleneck is a bad thing when it comes to gaming, GPU Bottleneck is actually desirable. Essentially, what this means is that your CPU processes all game and frame data faster than your GPU can do which results in 100% usage of your GPU. At first, this sounds bad, but because the GPU is what makes and displays the frames to your monitor in the first place and the fact that it gives 100% The frames can be a good thing and it is just what do you want when you are gaming.

How to Find whether your PC is Bottlenecking or not?

Visit pcbuilds.com and select the CPU and GPU model you are using or you want to know about its performance. Select the Ram Size and proceed on Calculate. The Result will be displayed in percentage. Remember, Everything over 10% is considered a bottleneck.

For Example, a user having CPU Ryzen 5 2600 and a GPU Nvidia 1050Ti