Understand the limit. Upgrade the right part.

How to identify a CPU bottleneck

A CPU bottleneck usually appears when GPU usage stays below maximum while frame rate stops improving. It is most common at 1080p, low graphics settings and high refresh rates.

• Watch per-core CPU usage, GPU usage and frame times during representative gameplay.
• Lower resolution. If FPS barely changes, the CPU may be setting the pace.
• Check temperatures, boost clocks, RAM configuration and background tasks first.

How to identify a GPU bottleneck

A GPU limit is normal in graphically demanding games. Usage near maximum, improved FPS after lowering resolution, and consistent CPU headroom usually point to the graphics card.

• Reduce resolution or heavy effects and compare FPS.
• Use upscaling when image quality remains acceptable.
• Check VRAM use before assuming raw GPU speed is the only problem.

Why resolution changes the result

Higher resolution increases the number of pixels the GPU must render. The same CPU and GPU pairing can be CPU-limited at 1080p, balanced at 1440p and GPU-limited at 4K.

Choosing the right upgrade

Upgrade the component that limits the workload you actually care about. Competitive players may benefit from more CPU headroom, while high-resolution single-player gaming usually benefits more from a faster GPU.

Run the PC bottleneck calculator

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Popular component checks

Start with the most-checked parts, then run your exact pairing in the calculator. Results are ranges by resolution, not a single exact percentage.

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Read the blog for new articles on these topics as they are published.