Video Decode Video
Browser video pipeline workload: concurrent playback and texture upload. Not a pure hardware-decoder measurement.
Video Decode
This canvas shows the animated graphics workload used to stress the GPU. It is decorative; results are listed in the metrics below.
- FPS
- –
- 1% LOW
- –
- FRAME TIME
- –
- SCORE
- –
- TIME
- 0:00
- LOAD
- –
- ERRORS
- 0
Before you start
GPU stress tests can significantly increase GPU load, temperature, power draw and fan speed.
Stop the test if your system becomes unstable, overheats, crashes or behaves unexpectedly. Do not run extreme tests on hardware with known cooling problems. This website cannot guarantee hardware safety.
This is a deliberately punishing test. It can push your GPU to its thermal and power limits for minutes.
- Laptops: plug in the charger and make sure the vents are clear.
- Make sure your GPU is cooled properly. Do not run this with known fan or cooling problems.
- Save your work and close other important tabs. A weak or overheated GPU can make the screen flicker or the graphics driver reset, which may close apps.
- You can stop at any time with the Stop button or the Escape key. The test also stops itself if frames take more than two seconds.
Long run: this test keeps the GPU busy for five minutes or more, so your computer will get warm. Laptops should be plugged in. You can stop at any time with the Stop button.
Browser video pipeline workload: concurrent playback and texture upload. Not a pure hardware-decoder measurement.
About this test
Makes a short test clip in your browser, then plays several copies at the same time and uploads frames to textures. It measures the browser's video pipeline (decode, copy and texture upload) under load, which matters for streaming, video calls and editing in the browser.
It is not a pure hardware-decoder measurement: the browser may use hardware or software decoding and the result depends on codecs and drivers.
How to read the results
Watch the average FPS for how much work the GPU finished, and the 1% and 0.1% lows for stutter. The SMG Verdict after the run scores power, steadiness, endurance, pacing and spike control from 0 to 100 and gives a tier from S to D. The class score removes intensity and resolution so runs at different settings share one scale; about 2,000 is a steady 60 FPS.
The Decode Score rises with the number of streams the browser handled at full frame rate. A low score with high CPU use often means software decoding.
Frequently asked questions
Does it test my GPU's video engine?
Only indirectly. The browser chooses how to decode, so treat the result as a measure of the whole video pipeline.
Why does it say the test is unsupported?
The test makes its own short clip in the browser, which needs canvas capture and video recording support. Use a current Chrome, Edge or Firefox.
Does it download videos?
No. The browser records a three-second clip from a canvas on your device, so there is no download.
Why is the score lower on battery?
Laptops often limit the video engine and GPU clocks when unplugged.
Share feedback about this test
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