Processor (CPU)

Graphics Card (GPU)

Display Configuration

GPU Configuration

What's New?

  • Automatic real CPU and GPU image display with placeholder fallback for missing images
  • Game-specific performance analysis and recommendations
  • RAM and storage impact assessment
  • Use case scenario optimization (Gaming, Streaming, Content Creation, Productivity, Workstation)
  • Upgrade cost-benefit analysis and suggestions
  • Advanced bottleneck detection with severity and type
  • Multi-GPU and eGPU configuration support
  • Comprehensive component filtering by tier and price
  • Export results as PDF or JSON
  • Localized language and currency support
  • Modern, responsive UI for desktop and mobile

Pro Tips

  • If you see a placeholder image, you can add your own real image in the assets/cpu or assets/gpu folder
  • Balance CPU and GPU for your target resolution and refresh rate
  • Consider RAM speed and capacity for high-end builds and multitasking
  • NVMe SSDs improve load times and system responsiveness
  • Higher refresh rates increase CPU and GPU demands
  • Content creation and streaming benefit from more CPU cores and RAM
  • Use the export options to save or share your analysis
  • Try different use cases and games to see tailored recommendations

Select CPU

Select GPU

How our Bottleneck Calculator works

Our Bottleneck Calculator helps you quickly find out if your CPU or GPU is slowing down your computer’s performance. It’s easy to use — just enter your hardware details, and you’ll get clear results showing where your system might be held back. You can update your info anytime without restarting the process. The calculator works well on any device and supports multiple languages, making it accessible to a wide range of users. Whether you’re a gamer, content creator, or just want to get the most out of your PC, this tool gives you simple, useful insights to make better upgrade decisions.

Frequently Asked Questions (FAQ)

A bottleneck happens when one component in your PC (like the CPU or GPU) limits the overall performance, preventing other parts from reaching their full potential. Think of it as a traffic jam in your system! If you’d like to analyze numbers or calculate averages for better comparisons, you can try our kalkulator średniej, a simple online tool that helps with quick and accurate calculations.

Spotting bottlenecks helps you make smarter upgrade decisions, so you don’t waste money on parts that won’t actually boost your performance.

A CPU bottleneck occurs when your processor can’t keep up with your graphics card or other components, slowing down your system. It’s usually caused by pairing a weaker CPU with a powerful GPU, or running tasks that are very CPU-intensive.

A GPU bottleneck happens when your graphics card is the limiting factor, often because it’s less powerful than your CPU or you’re running games at high resolutions or with demanding graphics settings.

A CPU bottleneck means your processor is holding things back; a GPU bottleneck means your graphics card is. The difference affects what you should upgrade for better performance.

A balanced system ensures both your CPU and GPU work together efficiently, maximizing performance and value for your money.

Main factors include the power of your CPU and GPU, RAM speed and capacity, storage type, screen resolution, and the specific games or applications you use.

Yes! Bottlenecks can lower your FPS (frames per second), causing stuttering or lag. A balanced system helps you get smoother gameplay.

Absolutely. Our tool factors in RAM speed/capacity and storage type (HDD, SSD, NVMe) for a more complete analysis.

Generally, if one component is over 15-20% more utilized than the other, it’s a sign of a noticeable bottleneck. Severe bottlenecks can really hurt performance.

It’s a tool that analyzes your PC parts and tells you if any component is holding back your system’s performance. To try it out, visit our Bottleneck Calculator homepage

Yes! You can select popular games to see how your system will perform and where bottlenecks might appear for each title.

You enter your components, and the calculator uses performance data and smart algorithms to estimate how well they work together.

Our calculator uses up-to-date benchmarks and real-world data, but results are estimates. It’s a great guide, but not a substitute for hands-on testing.

Just select your CPU, GPU, and (optionally) RAM, storage, and display settings. The more details you provide, the more accurate the results.

Yes, you’ll get personalized upgrade recommendations based on your current setup and goals.

Look for which component is limiting your system, how severe the bottleneck is, and check the upgrade suggestions for the best next steps.

Absolutely! It works for gaming, workstation, and general-purpose PCs.

No, this tool is designed for custom PC builds, not closed systems like consoles.

Usually the CPU or GPU, but RAM and storage can also play a role, especially in demanding tasks.

Yes, if your CPU is much weaker than your GPU, it can limit your graphics card’s performance.

Insufficient or slow RAM can cause stuttering and limit both CPU and GPU performance, especially in modern games and multitasking.

Yes! Faster storage (like SSDs and NVMe drives) reduces load times and can help with smooth gameplay, especially in open-world games.

Yes, especially if you have a very powerful CPU but an entry-level or older GPU.

Higher resolutions put more load on the GPU, while lower resolutions can shift the bottleneck to the CPU. Choose your parts based on your display needs.

This can be caused by background tasks, driver issues, RAM or storage limitations, or software bugs—not just bottlenecks.

Open-world games, simulators, and creative apps (like video editing or 3D rendering) are often more sensitive to bottlenecks.

Upgrade the limiting component, optimize your settings, close background apps, and keep drivers up to date.

Upgrade the limiting component, optimize your settings, close background apps, and keep drivers up to date.

Consider upgrading your CPU, lowering in-game settings that are CPU-heavy, or increasing your RAM speed/capacity.

Upgrade your graphics card, lower graphics settings, or reduce your screen resolution.

It can! Overclocking your CPU or GPU can squeeze out extra performance, but do it carefully and watch your temperatures.

Yes, but make sure the rest of your system is balanced so you don’t just move the bottleneck elsewhere.

Upgrade the component that’s currently limiting your performance the most—our calculator will tell you which one!

Always aim for a balanced system, check compatibility, and use our calculator to preview the impact of upgrades.

A balanced PC runs smoother, lasts longer, and gives you better value for your investment.

Yes! You can analyze single, multi-GPU, or external GPU configurations.

Check whenever you upgrade parts, change your main games or workloads, or notice performance issues.

Yes! Just select the appropriate use case and the calculator will tailor its analysis for your needs.

You can export your analysis as a PDF or JSON file—perfect for sharing or future reference.

Yes, it supports multiple languages for a more accessible experience.

Check these sections for expert advice, new features, and tips to get the most out of your PC build and upgrades.

Bottleneck Calculator App

Download our app that combines a bottleneck Calculator, scientific calculator, currency converter, average calculator, percentage calculator, discount calculator and unit calculator – all in one place! Modern design, up-to-date exchange rates make it the perfect tool for everyday calculations. Download now and make your life easier!