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PC Bottleneck Calculator: CPU & GPU Performance Check

Check if your CPU or GPU is throttling your gaming performance.

General Engine

We are using the general calculation engine for PC Bottleneck Calculator.

What is a PC Bottleneck?

A bottleneck occurs when one component in your PC (usually the CPU or GPU) limits the potential performance of the other. For example, pairing a high-end graphics card with an old processor means the GPU has to 'wait' for the CPU, resulting in lower frames per second (FPS).

How to Interpret Results

  1. <strong>GPU Bottleneck (Good):</strong> Running at 99-100% GPU usage is ideal for gaming. It means you are getting maximum visual performance.
  2. <strong>CPU Bottleneck (Bad):</strong> If your GPU is only at 60% usage because the CPU is maxed out, you will experience stuttering and low FPS.
  3. <strong>Resolution Matters:</strong> Higher resolutions (4K) put more load on the GPU, often reducing CPU bottlenecks.

Bottleneck FAQs

Is a 10% bottleneck bad?

Anything under 10% is generally considered acceptable and not noticeable in everyday gaming. Bottlenecks over 20% warrant an upgrade.

Can RAM cause a bottleneck?

Yes. Slow RAM or insufficient capacity (e.g., 8GB in modern titles) can limit CPU performance, indirectly causing a bottleneck.