PC Bottleneck Checker by BottleneckPC

Check CPU/GPU bottlenecks with honest performance ranges - not a fake single percentage. Free, offline, no tracking.

Available on Firefox for Android™

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About this extension

Check whether a CPU and GPU hold each other back - before you buy.

Most bottleneck calculators spit out a single confident percentage that no real benchmark could back up. Hardware does not work that way: the same pairing behaves differently in an esports title at 1080p than in a ray-traced AAA game at 4K. This extension reports an honest range instead, weighted by resolution, using a calibrated 0-100 gaming score for 300+ CPUs and 140+ GPUs.

Features:

Instant verdict in the toolbar popup - works offline
Select any CPU or GPU name on a page, right-click, "Check bottleneck"
Remembers your parts for one-click checks while you shop
One click to the full analysis: FPS estimates, upgrade suggestions, prices

No accounts, no tracking, no data collection. Made by bottleneckpc.com - the free PC-building toolkit with the open CC BY 4.0 hardware dataset.

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