Measure real-time WebGL rendering performance, frame pacing, and GPU workload directly in your browser.
This browser benchmark measures rendering performance using WebGL. Browser security and privacy restrictions prevent web pages from querying low-level hardware sensors such as exact GPU core temperature, power wattage, or physical VRAM allocation registers. We report verified driver capabilities and real measured frame times without simulated data.
Customize polygon counts, lighting shader complexity, and internal raster scale.
Controls the number of 3D objects rendered per frame.
Controls shader and lighting complexity.
Controls the internal rendering resolution.
Benchmark duration or continuous stress test.
Parameters queried directly from your browser's WebGL graphics driver context.
Learn how browser 3D pipelines function, how vertex and fragment shaders stress GPU hardware, and what frame pacing reveals about real-world smoothness.
A 3D rendering test puts a real-time computer graphics workload through your device's graphics pipeline. Unlike simple 2D drawing routines that manipulate flat bitmaps, a 3D pipeline defines geometric vertices in 3D coordinate space, multiplies them through matrix transformation math (model, view, and projection matrices), clips invisible geometry, and executes fragment illumination algorithms for millions of pixels every second.
When this benchmark initializes, your browser compiles OpenGL Shading Language (GLSL) source code through your operating system's graphics driver (DirectX via ANGLE on Windows, Metal on macOS, or Vulkan/OpenGL on Linux and Android). The compiled binary instructions execute directly on your graphics card's shader multiprocessors, fully exercising hardware rasterization units and memory controllers.
Frames per second (FPS) is simply an average frequency over time. However, human perception reacts strongly to irregularities in the interval between consecutive frames. If a system delivers 60 FPS but alternating frames take 5ms and 28ms, the motion will appear jerky and stuttered despite the 60 FPS counter. Maintaining a steady frame time (16.67ms at 60Hz) is critical for fluid 3D interaction.
The 1% Low metric identifies the 99th percentile slowest frames recorded during the test session. These hitches usually occur when the browser triggers JavaScript garbage collection pauses, when background processes steal GPU priority, or when the graphics driver throttles clock frequencies. A small delta between average FPS and 1% Low FPS proves superior system pacing.
Our Render Scale control modifies the internal WebGL drawing buffer resolution. At 100% scale, the canvas draws at exact native device pixels. At 150%, the GPU must compute lighting and rasterization for 225% more pixels before downsampling to screen resolution. This super-sampling isolates whether your GPU's performance bottleneck is vertex processing or fragment fillrate capacity.
Modern W3C standards enforce strict privacy boundaries to prevent hardware fingerprinting and side-channel timing attacks. Browsers cannot read physical thermal diodes or query dedicated video RAM (VRAM) registers. We prioritize absolute honesty: we present high-precision performance metrics without fabricated numbers.
Browsers synchronize canvas presentation with your operating system's window compositor and display refresh rate using requestAnimationFrame. If your display is set to 60Hz or 120Hz, your framerate will naturally lock to that ceiling unless hardware VSync is decoupled. A frame delivery matching your refresh interval indicates optimal driver synchronization.
To obtain peak rendering throughput in WebGL tests, ensure hardware graphics acceleration is enabled in your browser settings. Close resource-intensive background browser tabs (such as video streams or heavy WebAssembly apps), keep the device plugged into wall power to bypass aggressive battery-saver thermal throttling, and use full-screen mode to minimize operating system compositor overhead.
Answers to common questions regarding WebGL 3D benchmarking, hardware limits, and graphics optimization.
