Information
About Us
Last updated 2026-07-06
Free PC Bottleneck Calculator is a free, browser-based tool that helps gamers and PC builders understand whether their CPU, GPU, RAM, or storage is most likely to limit gaming performance.
Our mission
We built this calculator because bottleneck advice online is often oversimplified - a single percentage with no context about resolution, workload, or hardware generation. Our goal is to give you actionable, transparent estimates so you can plan upgrades with confidence.
What we offer
- Matched-FPS modeling - separate CPU and GPU performance ceilings per resolution, not one abstract score
- 120+ GPUs and 70+ CPUs - including desktop and laptop variants, updated through June 2026
- RAM, VRAM, and storage checks - beyond CPU vs GPU alone
- Compare mode - analyze two builds side by side
- Quick presets - load common configurations with one click
How we source data
Performance anchors are normalized from aggregated benchmark data (TechPowerUp GPU relative performance, Tom's Hardware hierarchies, and per-resolution gaming benchmarks). Each entry includes provenance metadata: source, sample count, and last verified date.
Estimates are planning guides, not guarantees. Always confirm with game-specific benchmarks before purchasing hardware.
Who we are
We are an independent project focused on PC hardware education. The calculator is free to use, requires no account, and starts from the default hardware configuration on each visit.
Get in touch
Questions, feedback, or data corrections? Visit our Contact Us page.