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QUEST · LV.08

GPU test (quick stress & score)

Push your graphics chip with a demanding shader for a short time and see how it holds up.

Runs in your browser · Nothing uploadedFree · No install

GPU test (quick stress & score)

Short, browser-based load test

This puts your computer under heavy load for up to 60 seconds. Fans may spin up and the device will get warm — that’s normal. It stops automatically, when you press Stop, or when you leave the tab. Lighter than dedicated tools like Prime95 or FurMark.

— fps

Ready. Results appear here.

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Graphics
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Score = 720p shader passes per second. Compare on the same browser. Laptops with two GPUs may use the integrated one for browsers.

Result

Not tested

Waiting for you to start the test.

How to use

  1. 1Plug in your laptop and close games or video apps.
  2. 2Press Start and watch the score and FPS.
  3. 3Check whether hardware acceleration is on and whether the score dropped.

Troubleshooting guide

The FreeComTools mascot next to a graphics card watching a 3D scene

What this GPU test does

The test draws a demanding animated shader (layered fractal noise) at a fixed 1280×720 resolution using WebGL 2. It automatically adjusts how many full-screen passes it draws per frame so the GPU stays busy, then reports passes per second as the score, the frame rate, and whether throughput dropped over time.

It is a short browser-based check. Browsers cap power use and run a translation layer between WebGL and the driver, so dedicated tools like FurMark, 3DMark or Unigine produce more load and more precise numbers.

Reading the results

  • GPU score: 720p shader passes per second. Higher is faster. Compare the same computer over time, or two computers in the same browser.
  • Frame rate: how smoothly the test animation runs. The test targets ~30 fps on purpose, so FPS alone is not the score.
  • Slowdown at the end: over 20 % usually means the GPU is hitting a temperature or power limit.
  • “Software rendering” warning: the browser is drawing with the CPU instead of the GPU — hardware acceleration is off or the driver is blocked.

Low score or software rendering? Check these

  1. Browser settings → System → turn on “Use graphics acceleration when available”, then restart the browser.
  2. Update the graphics driver from NVIDIA, AMD or Intel (not just Windows Update).
  3. Laptops with two GPUs: Windows Settings → System → Display → Graphics → set your browser to “High performance”.
  4. Plug in the charger; many laptops halve GPU speed on battery.
  5. Clean dust from fans and heatsinks if the score drops during the test.

Driver reset during the test

If the screen flickers or the test reports a driver reset, the graphics driver crashed and restarted. Update the driver first. If it keeps happening with games too, the GPU may be overheating, overclocked too far, or failing.

Safety

The test is capped at 60 seconds, stops when you switch tabs, and can be stopped any time. GPUs throttle themselves to stay within safe temperatures.

Frequently asked questions

Is this the same as FurMark?

No. It is a lighter browser test meant as a quick check. Use FurMark or 3DMark for long stress tests and comparable benchmark scores.

Why does my laptop show the integrated GPU?

Browsers often run on the power-saving GPU. Set the browser to “High performance” in Windows graphics settings or the NVIDIA Control Panel to use the dedicated GPU.

Does it work on phones?

Yes, on phones and tablets that support WebGL 2. Phones throttle quickly, so the slowdown result is especially useful there.

Can I see GPU temperature?

No — browsers can’t read sensors. Use GPU-Z, HWiNFO or your GPU vendor’s app while the test runs.

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