WebGL 3D GPU Stress Test & Live FPS Benchmark
Push your graphics card directly in your browser with real-time 3D particle vortex physics, frametime stability tracking, and hardware shader diagnostics.
Frequently Asked Questions
How does a browser WebGL benchmark test your physical GPU?
WebGL (Web Graphics Library) communicates directly with your graphics card drivers via DirectX, Vulkan, or Metal using hardware-accelerated shaders. By simulating tens of thousands of dynamic physics particles and matrix vector multiplications per frame, it stresses your GPU shader cores and VRAM bandwidth.
Why is browser hardware acceleration required for this test?
If Hardware Acceleration is disabled in Chrome, Edge, or Firefox settings, your web browser falls back to software CPU rasterization (SwiftShader / Mesa). This results in single-digit frame rates (2โ5 FPS) and high CPU usage rather than testing your dedicated GPU.
Can this browser stress test crash a faulty or unstable GPU?
Yes. If your graphics card has unstable memory overclocks, inadequate thermal paste, or dying VRM power delivery, sustained heavy WebGL particle loads can trigger driver timeouts (TDR - Display Driver Stopped Responding) or black screens.
How does the benchmark calculate 1% Low FPS?
The benchmark records the exact rendering duration of the last 300 consecutive frames using high-resolution performance timers (performance.now()). The slowest 1% (the 99th percentile frame times) are converted back into an FPS equivalent to evaluate micro-stuttering.