Click Run benchmark and the page renders an instanced 3D scene that doubles in size per tier (1,000 up to 256,000 meshes) while measuring the median frame rate - a full run takes roughly 20 to 40 seconds.
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GPU Test - WebGL Benchmark & Info
freetoolonline.com Editorial TeamSee what your browser's graphics stack can do - WebGL 1 and 2 availability, the renderer name your browser reports, texture and viewport limits, and WebGPU presence.
The score reflects sustained geometry throughput - tiers advance while the median holds 55 FPS, and frame rates above 60 count as 60 so high-refresh screens stay roughly comparable.
It is honest about limits - an indicative browser benchmark, not a lab-grade suite; device heat, battery mode, and other tabs shift the numbers, so compare scores only between runs on the same device and browser.
Inside the escalating benchmark - how the nine tiers scale in depth
The benchmark climbs through nine tiers, doubling the instance count at each step from 1,000 icosahedrons up to 256,000, all drawn from a single InstancedMesh so the number reflects raw geometry throughput rather than draw-call overhead. Every tier opens with a one-second warmup that is thrown away, then three seconds of measured frames whose median frame time sets that tier's FPS; the run advances to the next tier only while the median holds at 55 FPS or better and stops at the first tier that falls below. Frame rates above 60 are counted as 60 when scoring, and the score sums instances times that capped FPS across completed tiers and divides by 1,000, so a 120 Hz display cannot inflate the total past an ordinary 60 Hz screen. A per-tier results table records what each step reached, and a rating line names the highest tier your device held at 45 FPS or more. You can end a run early with the Cancel button, and the test also aborts itself if you switch to another tab or the browser loses its WebGL context, since throttled background frames would otherwise corrupt the median.
Frequently Asked Questions
What does GPU Test - WebGL Benchmark & Info do?
See what your browser's graphics stack can do - WebGL 1 and 2 availability, the renderer name your browser reports, texture and viewport limits, and WebGPU presence.
When should I reach for gpu test - webgl benchmark & info?
The score reflects sustained geometry throughput - tiers advance while the median holds 55 FPS, and frame rates above 60 count as 60 so high-refresh screens stay roughly comparable.
What complementary tools work well alongside gpu test - webgl benchmark & info?
Your recent runs (up to 20) are kept in this browser's local storage so you can watch a trend over time - nothing is uploaded anywhere.