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SilverBench explained…

At a glance

• A free browser CPU test—JavaScript rendering, with no installation or GPU acceleration.
• Photon mapping calculates the scene's lighting. Web Workers share the rendering across CPU cores.
• Web Workers share the rendering across CPU cores.

Choose a test

• Benchmark (P): one frame for a quick performance check.
• Extreme (X): ten frames with a moving light for a longer run.
• Stress (S): continuous rendering for cooling and stability checks.

Fair comparisons

• Higher scores mean faster rendering. Compare the same test using the same browser and operating system, with other work paused.
• Use + and - to adjust the worker count.

Explore SilverBench

• Run SilverBench or open its Full HD showcase to inspect the scene.
• Browse recent results, all-time rankings, system statistics and technical notes and updates.

Video chapters

• 0:00 Intro
• 0:20 What is SilverBench?
• 0:37 How Real Light Travels
• 1:09 Raytracing — SilverBench V1
• 2:02 Photon Mapping — JavaScript Edition
• 3:04 Rendering Pixel by Pixel
• 3:22 A Little SilverBench History
• 3:42 Multicore CPU Rendering
• 4:08 Why Workers Don't Move Like a Snake
• 4:38 Benchmark & Extreme Test
• 5:12 CPU Stress Test
• 5:31 Full HD Showcase
• 5:42 Scores & Rankings
• 6:18 Pro Tips for Fair CPU Comparisons
• 7:14 CPU Affinity on Windows
• 7:38 Try SilverBench

A little SilverBench history

• 2010 · SilverBench began as a Microsoft Silverlight project.
• Jun, 2012 · SilverBench v1.5.
• Nov, 2018 · SilverBench.js v2.0 brought the benchmark to JavaScript.
• Sep, 2025 · SilverBench.js v2.1 improved sustained CPU usage.

That's a lot of rays!

• One tera ray is one trillion rays—a lot of virtual light for a pair of spheres!
• The sidebar estimates the total rays traced across SilverBench runs. Your CPU helps grow that number.

Keep in touch

• Share ideas, questions or interesting results in the YouTube comments, the sidebar comment box or on Twitter/X.
• Spam means we cannot read every message. If we miss yours, give us a nudge through another channel.

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