GPU Information
Detect your graphics card model, WebGL capabilities, and GPU renderer information directly from the browser.
How Does the GPU Information Tool Work?
- The tool creates a WebGL context and reads the GPU renderer information.
- The WEBGL_debug_renderer_info extension provides the actual GPU model name.
- Additional parameters like texture size limits show GPU capabilities.
- All detection happens locally in your browser.
How Browsers Detect Your GPU
Browsers don't have direct access to your GPU driver the way a native application does. Instead, they detect your graphics card through WebGL — specifically, an extension called WEBGL_debug_renderer_info. When this tool creates a WebGL context, it queries two values: the vendor (who made the GPU) and the renderer (the GPU model string). On most systems, this returns something like "NVIDIA Corporation" and "NVIDIA GeForce RTX 4070" — enough to identify your exact card.
On some platforms, the renderer string goes through a translation layer. ANGLE (Almost Native Graphics Layer Engine) converts WebGL calls into DirectX on Windows, Metal on macOS, or Vulkan on Linux. When ANGLE is active, the renderer string may include "ANGLE" as a prefix. This is normal and doesn't indicate a problem — it simply means the browser is using the system's native graphics API under the hood rather than OpenGL directly.
Integrated vs. Discrete GPUs
Most laptops and many desktops have two types of GPU. The integrated GPU (iGPU) is built into the CPU — Intel UHD, Intel Iris Xe, or AMD Radeon integrated graphics. It shares system memory, uses minimal power, and handles everyday tasks like video playback, browser rendering, and desktop compositing. The discrete GPU (dGPU) is a separate chip — typically from NVIDIA or AMD — with its own dedicated video memory (VRAM), built for gaming, 3D rendering, and compute workloads.
Laptops with both GPUs use automatic switching (NVIDIA Optimus or AMD Switchable Graphics) to route lightweight tasks to the iGPU and demanding tasks to the dGPU. Browsers almost always land on the integrated GPU because they're classified as general-purpose apps. If this tool shows your integrated GPU instead of your discrete card, that's by design. You can force the browser to use the discrete GPU through your driver's control panel — on NVIDIA, open NVIDIA Control Panel → Manage 3D Settings and add your browser executable to the high-performance GPU list — but this increases power consumption significantly on a laptop.
GPU Acceleration in Web Browsers
Modern browsers use the GPU for far more than WebGL. Hardware-accelerated compositing offloads page rendering layers, CSS animations, scrolling, and video decoding to the GPU. This is why disabling hardware acceleration (a common troubleshooting step for display glitches) can make the entire browser feel noticeably slower. The GPU handles these tasks in parallel with the CPU, freeing the main thread for JavaScript execution.
If you experience visual glitches, screen tearing, or browser crashes, the problem often lies in the GPU driver rather than the browser itself. Updating your GPU driver to the latest stable release resolves the majority of rendering issues. On Windows, use GeForce Experience (NVIDIA) or AMD Software to update. On macOS, GPU drivers ship with macOS system updates. If problems persist, you can check chrome://gpu (in Chromium browsers) to see which GPU features are enabled, disabled, or blacklisted.
Frequently Asked Questions
- Why does it show a different GPU than I have?
- If you have a laptop with dual graphics (integrated + dedicated), the browser may use the integrated GPU by default to save power. You can change this in your GPU driver settings.
- Why does the GPU renderer show 'ANGLE' or 'SwiftShader'?
- ANGLE is a translation layer that converts WebGL to DirectX/Metal/Vulkan. SwiftShader is a software renderer used when hardware acceleration is disabled. Both are normal.
- Can I run GPU benchmarks in the browser?
- This tool provides information about your GPU, not benchmarks. Browser-based GPU tests are limited by WebGL's capabilities and cannot fully stress-test a GPU like native benchmarking tools.