About
What We Test and How to Interpret Your Results
Our free online GPU stress test uses real-time WebGL2 rendering to push your graphics hardware with continuous graphical workloads. Understand FPS stability, rendering performance, and system reliability under load.
Run Stress TestWhat This Tool Measures
We measure frame rate stability (FPS), rendering performance, and system reliability under sustained graphical load. The test generates continuous shader-driven scenes with adjustable particle count and physics complexity, simulating demanding workloads similar to modern games and visual applications.
Results help you see how well your GPU maintains frame output, handles thermal load, and avoids throttling or instability. Many users compare their numbers with advanced shader benchmarks like Volume Shader to build a complete picture of graphical and computational strength.
How the Test Works
The stress test runs entirely in your browser using WebGL2. It renders a particle-based scene with real-time physics, dynamic lighting, and progressively heavier fragment shader work depending on the complexity level you choose. No software installation is required.
You can adjust the number of particles (from a few thousand up to tens of thousands) and select from Simple, Medium, Complex, or Extreme physics. Higher settings increase both CPU physics steps and GPU shader load, giving you control over how intensive the test is on your desktop or mobile device.
Limitations
Browser-based testing has inherent limitations. Results can vary with browser, operating system, driver version, and background processes. This tool is intended for comparative and educational use rather than as an absolute benchmark.
For the most reliable picture, run the test multiple times under similar conditions, ensure proper cooling, and consider comparing with other benchmarks such as Volume Shader for deeper rendering and computational analysis.