GPU questions, fixes and result guides.
Practical answers for common gpu problems, confusing results and setup questions — with a direct path back to the live test.
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.
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.
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.
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.
Why does the GPU test show a different renderer than my graphics card name?
Browsers may hide the exact GPU name for privacy and report a generic renderer instead. The WebGL details on the page show what the browser actually exposes.
How accurate is this gpu tool?
A browser cannot read GPU temperature, VRAM size or fan speed, and canvas FPS is not an in-game benchmark.
What should I do if the gpu result looks wrong?
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.