Check my PC
Load the processor and the graphics card right here and get three answers about each: does it compute correctly, does it hold its speed, and is its speed where this model normally sits. Then read which of the two sets the frame rate at your resolution. Nothing to install; nothing leaves this page unless you copy a link.
- Pick the partsPick the processor; the card is detected from the browser
- Pick a testChoose a kind of test, from under a minute to eight and a half, and keep this tab in front
- Run itWatch it run: every chunk of work verified, the speed charted second by second
- Read the resultRead the scores, the three answers, and which part sets the frame rate at your resolution
Illustration: the two parts the test loads, the processor and the graphics card. A still picture, so it takes nothing from the measurement.
What the test does
Does it compute correctly?
Every worker first reproduces fixed results bit for bit. Then every chunk of work under load is compared with a known answer, the card's output is checksummed after every submit, and its memory is written with two patterns, held under load and read back. One wrong bit is a fault, and the report names where.
Does it hold its speed?
All cores run for a minute, sampled every second; the deep run loads both parts together for six. The second half of the window is read against the first: a part that throttles declines, and a cooler that cannot keep up shows as a slope, not a number.
Is it where its model should be?
The measured speed is read against what this model normally does: the median of other visitors' runs once enough exist, until then a calibration from published scores, with the band shown. No single score, no ranking against strangers.
Five kinds, each with the time it takes
- Quick run, processor and cardabout 2 minutes
- Deep run, processor and cardabout 8½ minutes
- Processor onlyabout 1½ minutes
- Graphics card onlyabout 2 minutes
- Video memory onlyunder a minute
What it needs, and what stays private
- A desktop or laptop PC in Chrome, Edge, Firefox 141+ or Safari 26+; the card needs WebGPU, the processor runs anywhere.
- This tab in front for the whole run. Windows treats a hidden or covered window as a background process and moves it to the efficiency cores; the page refuses to start hidden and stops if it is hidden.
- A laptop plugged in, other programs closed.
- Nothing leaves the page unless you copy a link or upload a run anonymously. The site sets no cookies.
Prefer a window of its own? Open the test in its own window. For an hour under load with error checks, the guided stability hour walks you through six free tools. The list-based check-up (memory, drive, power supply, cooler) is at Check-up by the parts list.
Hardware test
Reading what this browser can see of the machine.