Performance Test

A quick, honest browser-level answer to "is this PC slow?" - the single most-requested help-desk complaint. Runs a fixed compute workload, measures sustained frame rate, reads reported memory, and gauges main-thread scheduling latency, then gives a simple tier plus the raw numbers. This is a rough browser-level indicator, not a full hardware benchmark. A VM or remote session (Citrix, RDS, VDI) or a machine under heavy load will score low.

Read the Performance Test guide for help reading the tier and understanding what each number means.

Privacy: All measurements run in JavaScript in this browser tab. Nothing about your machine is transmitted; the numbers are computed and displayed locally. View source to verify.

Configuration

Driver: In-browser microbenchmarks

Takes about 3 to 4 seconds. Runs entirely client-side; no requests leave your browser. Close other heavy tabs first for a cleaner reading.

Status Check Step

Pending

Processor speed

Runs a fixed integer and floating-point workload and derives a rough ops/sec score. Also reads hardwareConcurrency.

1 of 4

Pending

Graphics and rendering

Measures sustained frame rate over about one second while doing light canvas and DOM work, and counts dropped frames.

2 of 4

Pending

Memory

Reads navigator.deviceMemory (approximate, Chromium only) and performance.memory heap limits where exposed.

3 of 4

Pending

Main-thread responsiveness

Schedules a series of timer callbacks and measures actual versus intended delay to gauge event-loop scheduling latency.

4 of 4