GPU Benchmark: Test Your Graphics Card's Performance

What this GPU benchmark checks

A graphics card doesn't do just one kind of work. Rendering a game scene, processing a shader effect, sampling a texture, and simulating thousands of particles are all genuinely different workloads that stress different parts of a GPU. This benchmark runs your graphics card through each of those separately using WebGL and WebGPU, the graphics technologies built into modern browsers, and reports how it performs on each one.

Worth being clear about what this page is and isn't: this is a performance benchmark, measuring how fast and capable your GPU is at these specific rendering workloads. It's not a stability or thermal-handling test, that's a different question entirely, checking whether your GPU stays stable and cool-manageable under sustained, continuous heavy load over time. If that's what you're actually looking for, our dedicated GPU Stress Test is built specifically for that kind of sustained-load diagnosis.

How to use the GPU benchmark

• Close other GPU-intensive tabs or applications so the results reflect your GPU's available performance, not shared load.
• Run each of the five sub-tests individually rather than assuming one result represents your whole GPU.
• Let each test run its full duration, a quick glance at the first few seconds won't give you a representative number.
• Note your browser and its version if you plan to compare results later, since scores can shift between browser updates.

3D Rendering Benchmark

This test renders a scene with geometry, lighting, and depth, the same fundamental building blocks used in games and 3D applications, and measures how many frames per second your GPU can sustain while drawing it. It's the closest of the five tests to general, real-world graphics performance, since most everyday 3D workloads, games included, are built primarily around exactly this kind of geometry and lighting calculation. A strong result here is a reasonable general indicator of how your GPU will handle typical 3D content, though any specific game will still have its own particular demands on top of this baseline.

Shader Performance Benchmark

A shader is a small program that runs on your GPU, and a fragment (or pixel) shader specifically calculates the final color and lighting of every individual pixel on your screen, in parallel, potentially millions of times per frame. This test loads your GPU with increasingly complex shader calculations to measure how much per-pixel processing power it has available. This matters directly for visual effects, reflections, shadows, and lighting techniques in games and applications tend to lean heavily on shader complexity, so a GPU that handles this test well is generally better equipped to run visually demanding effects smoothly.

VRAM and Texture Benchmark

This test measures how quickly your GPU can read and sample texture data, the image files wrapped onto 3D surfaces to give them detail and realism. It specifically stresses texture bandwidth and your GPU's available video memory (VRAM) by working with high-resolution textures. This is directly relevant to anything texture-heavy: high-resolution game textures, detailed 3D models, or applications juggling a lot of image data at once. A GPU that struggles here, even if it handles basic geometry fine, can show slowdown specifically in scenes with a lot of detailed surface texturing.

Particle System Benchmark

Particle systems, think smoke, sparks, explosions, or rain, work differently from solid geometry. Instead of a few large, complex objects, you're rendering potentially thousands of small, independent objects, each with its own position and often its own physics calculation, updated every frame. This test specifically stresses that combination, physics calculation plus the overhead of managing and drawing a large number of separate small objects, which is a genuinely different kind of load than rendering one large detailed scene. Games and effects-heavy applications that rely on lots of simultaneous particle effects will lean on exactly this kind of GPU performance.

Volume Rendering Benchmark

This is the most computationally intensive test of the five, and it works fundamentally differently from the others. Instead of rendering solid polygon-based geometry, this test uses a technique called raymarching, stepping along a ray through 3D space and evaluating a mathematical function at each step to determine what's there, commonly used to render complex fractal shapes like a Mandelbulb. This approach is extremely math and shader intensive, since every single pixel requires potentially dozens or hundreds of these evaluation steps, rather than a straightforward polygon draw. It's not directly representative of typical game rendering, few games use pure raymarching for their core visuals, but it's an excellent way to push a GPU's raw shader compute power to its limit, revealing performance headroom that lighter tests won't expose.

What your scores mean

Worth being upfront here: there's no independent, universally recognized scale that a browser-based benchmark score maps onto the way some long-established desktop benchmarking tools have built up over years of aggregated comparison data. That means the most honest and useful way to read your score is as a relative measurement, not an absolute rating. It's genuinely useful for comparing your own GPU before and after a driver update, checking whether a change actually improved performance, or comparing two of your own systems under the same test conditions. Comparing your raw number against someone else's is far less meaningful unless you're both on the same browser, similar drivers, and similar system conditions at the time of testing.

Why results vary by browser and system

If you've run this on two different browsers and gotten two different scores on the exact same GPU, that's real and expected, not a sign anything is wrong. Chrome, Firefox, and Safari each implement WebGL and WebGPU somewhat differently, and each applies its own level of driver-level optimization to how graphics instructions get translated and executed. That means identical hardware can genuinely produce different scores depending on which browser you're using.

This is also a good place to clarify the difference between the two underlying technologies these tests use. WebGL is the older, more widely supported browser graphics API, and it's what most of these tests rely on by default. WebGPU is newer, offering lower-level access closer to what native graphics APIs provide, including proper compute shader support, with real performance potential, but it isn't supported quite as universally across browsers yet. If a specific test here uses WebGPU and performs noticeably differently than you'd expect, checking whether your browser has full WebGPU support is a reasonable first step.

What this benchmark can't tell you

A few honest limitations worth knowing before you rely too heavily on any single number here. This benchmark can't read your GPU's actual temperature, browsers simply have no access to hardware sensors, so if you're specifically trying to monitor thermals, you'll need dedicated hardware monitoring software for that. It also isn't designed to reveal sustained stability under long, continuous load, a GPU that scores well here for a short test duration can still behave differently after twenty minutes of continuous heavy work, which is exactly what a dedicated stress test is built to check. And since your score is shaped by your specific browser and driver version as much as your hardware itself, treat these results as a genuinely useful relative comparison tool rather than a precise, universal rating of your GPU's absolute capability.

Troubleshooting common issues

• Test won't start, or shows "not supported." Confirm your browser supports WebGL (and WebGPU for tests that require it), most modern versions of Chrome, Firefox, Edge, and Safari do, but very old browser versions or certain restricted browser modes may not.
• Scores seem unusually low for your hardware. Close other GPU-intensive tabs or applications running at the same time, and check that your graphics drivers are reasonably current, outdated drivers can meaningfully limit WebGL and WebGPU performance.
• Results are inconsistent between runs. Some variation is normal due to background system activity. Run each test a couple of times and look at the general pattern rather than a single result.
• Laptop shows lower scores than expected. Confirm the test is actually running on your laptop's dedicated GPU rather than its integrated graphics, many laptops with both will default to integrated graphics for browser tabs unless configured otherwise.

FAQ