GPU Test & Graphics Benchmark Guide
Check your GPU with a real browser test: WebGL renderer details plus a 5-second canvas stress test that measures FPS and 1% lows.
How to use this test
Press the stress test button and keep the tab visible for 5 seconds while 90 shapes animate on the canvas. Read average FPS and the 1% low when the run finishes.
How the measurement works
The tool reads WebGL renderer, version and texture limits, then renders moving shapes every frame and measures frame rate from real requestAnimationFrame intervals.
How to interpret results
A result near your display refresh rate with a stable 1% low is healthy for browser rendering. A large gap between average and 1% low means stutter, even if the average looks high.
Troubleshooting tips
Keep the tab visible, close heavy tabs, disable battery saver and compare the same browser window size. Background tabs are throttled and always score lower.
Related tests
You can also browse every utility from the complete tool index.
Common gpu questions
How do I test my graphics card online?
Open the GPU test to see WebGL renderer details, then run the 5-second canvas stress test for a real FPS and 1% low measurement. It works in the browser with no install, but it cannot replace a manufacturer gaming benchmark.
Read full answer →Why is my browser FPS lower than my game FPS?
They measure different things: the browser test renders a canvas workload in a tab, while a game renders its own 3D scene. Browser FPS is capped by the tab, display refresh rate and power mode, so compare browser runs with browser runs only.
Read full answer →How can I check if my GPU is the bottleneck?
Compare the canvas FPS result with CPU and memory results on this site. If graphics-heavy pages stutter while CPU and memory look fine, update GPU drivers, check the display cable and refresh-rate setting, and test a dedicated GPU benchmark.
Read full answer →What is a good GPU FPS result?
Near your display refresh rate (usually 60 FPS) with a stable 1% low is healthy for browser rendering. A large gap between average FPS and 1% low means stutter even when the average looks high.
Read full answer →