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These are Best Bottleneck Calculator 2021

best bottleneck calculator

Most PC/System Building Enthusiasts are most of the time checking for the bottleneck of a system before installing hardware or even after installing devices. Checking and analyzing bottleneck is undoubtedly not an easy process this is where PC Bottleneck Calculator comes in. You’ll have to buy and then install CPU and GPU and then compare their performance (because most of the time the problem occurs because of the performance gap between both of these).

However, there is an easy way to avoid all hassles, and it is using CPU GPU bottleneck calculator that helps you calculate bottleneck percentage without physically adding a component in your system. These calculators even are not 100% accurate but you’ll get to know if there’s any major conflict between components before making a purchase.

What is Bottleneck in CPU Building?

Well, the bottleneck concept is something relating to getting 100s of input at a time from a component while you have processing capability of only 10 in a particular time unit. A bottleneck is quite simple at its core while remaining an issue many people are not aware of. Bottlenecks, in computers, are a phenomenon that occurs when a given computer part is too slow, old, or otherwise incompatible with another part causing data packets to be slowed down, stuck in traffic, and sometimes even lost.

Best Bottleneck Calculator of 2021

If you are looking for a solution to calculate the bottleneck of your PC parts, I am going to enlist a few of them. These are the best calculator to calculate bottleneck percentage and component affecting the performance of your system in 2021. I’ve found these in my research while building a custom PC. These works for both kinds of builds whether you’re building a workstation of a gaming PC.

1. PC-Build’s Calculator for Bottleneck

This calculator from PC-Build’s is pretty simple and easy to use. You need to select the part of your system and click on the calculator to check the bottleneck percentage. It will display the part of the system that has the most effect on your PC’s performance.

Link: https://pc-builds.com/calculator/

To calculate the bottleneck of your system, select your components, for example, GPU, CPU, and RAM along with storage, then click “Calculate.”

bottleneck calculator 2019 pc-build

One the very next screen calculation results will show and also the major contributor in the bottleneck percentage. They also suggest components that can lower your rate and improve the performance of your system.

bottleneck calculator 2019 pcbuild - These are Best Bottleneck Calculator 2021

2. Bottlenecked’s Calculator

Their calculator is another improved calculator, but its one-second number because of the bugs on their web. Sometimes it doesn’t work, and you have to recalculate the bottleneck percentage again. This system also helps you find the place to buy the product, which hurts system performance or contributes most to the bottleneck percentage.

Link: Removed as a Result of Scam

It is simple to calculate the process select component of the system that you are planning to build one by one and press the “Submit” button.

best bottleneck calculator 2019

Once you press the SUBMIT button, you will be redirected to the next page press “Reveal Result” button to check the calculation result.

bottleneck calculator 2019

These are the two reliable websites that I’ve found and tried on the web and found them to be really useful. Bottleneck calculators are easy-to-use tools for checking whether the hardware you plan to install into your computer is a good match or not, but they are not absolutely correct and you should also research a little bit. One more thing to mention here is don’t trust the bottleneck finder if it recommends you buying an expensive part.

I am trying to find a new tool but haven’t found a new one so far in 2021, I will keep updating this article with the relevant information related bottleneck calculators.

Update 23/06/2021: I did a lot of research but couldn’t find a worthy computer bottleneck calculator that is worth mentioning on this page.

If you know of any other bottleneck calculator app or web to calculate the performance or the bottling issues of the computer system, do share it in the comment section so we can test and add it to the list.


  1. Very confused. First report of scam site is on Sept 2. And then the second is on Sept 22. It seems as though the spam site has been up for quite a while, hence the disbelief you all are unaware of it.


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