How to use the FPS calculator correctly
The FPS calculator estimates how many frames per second a given CPU and GPU combination can produce in a specific game. It is a guide for planning, not a guarantee of your exact results.
Step by step
- Pick the game you want to run.
- Pick the GPU you own or plan to buy.
- Pick the CPU (optional but recommended - it matters in many titles).
- Choose your target resolution, quality preset and upscaling mode.
- Run the estimate and read the confidence grade.
How the estimate works
Every component in the catalog carries a relative performance index. The engine combines the GPU and CPU indexes, applies the workload profile of the chosen game and quality level, and scales the result to the target resolution.
Upscaling options such as DLSS, FSR or XeSS are applied only when both the game and the GPU support them - we do not assume support that does not exist.
Why your real FPS can differ
Several things change real-world results:
- Background software and thermal behaviour on your specific machine.
- Driver versions and game patches that alter performance.
- Whether the game is CPU-heavy or GPU-heavy at your chosen settings.
Trust the confidence grade
When the calculator has strong source data for a GPU and game, it reports high confidence. When a game is unusual or a GPU is very new, confidence drops - treat the result as an approximation.
Use the result as a sanity check when choosing a GPU or upgrading, not as a lab measurement.