Free
benchmark.
15 seconds.

What is 9bench?

9bench is a free, open-source browser-based hardware benchmark that tests your CPU, GPU, and RAM speed in about 15 seconds — no download, no installation, no account required. The entire benchmark runs locally in your browser using WebGPU compute shaders, WebAssembly, Web Workers, and the Web Crypto API. Results include a global percentile ranking against all submitted scores.

Test duration

~15 seconds (full CPU + GPU + RAM)

Price

Free — no ads, no premium tier, no upsell

Download required

None — runs entirely in the browser

Privacy

All measurements run locally; score submission is opt-in and anonymous

License

MIT open source (GitHub)

Last updated

July 29, 2026 (methodology v3.7)

How does the 9bench benchmark work?

1. GPU compute: A 1024×1024 floating-point matrix multiplication runs on your GPU via WebGPU compute shaders, measuring GFLOPS (billions of floating-point operations per second).
2. CPU single + multi-core: SHA-256 hash chains via the Web Crypto API measure single-thread performance. Parallel Web Workers test multi-core scaling across all available cores.
3. RAM bandwidth: Sequential and random-access patterns on a 256 MB Float32Array measure read/write throughput (GB/s) and latency (nanoseconds).

The overall score uses a weighted geometric mean:

overall = exp(0.35 × ln(GPU) + 0.45 × ln(CPU_multi) + 0.20 × ln(RAM))

This means 35% GPU, 45% CPU multi-core, 20% RAM. A single weak component cannot be masked by strong ones — the geometric mean penalizes imbalance. Every formula is documented on the methodology page.

9bench vs Geekbench vs UserBenchmark vs Cinebench

On the other hand, native benchmarks like Geekbench and Cinebench are more accurate for absolute peak measurement. If you need precise single-core IPC numbers for a hardware review, you should use Geekbench. If you need instant, zero-friction relative comparison across machines — try 9bench. The two approaches complement each other.

What are the 9bench score brackets?

Scores are calibrated to 2026 hardware. Across the 2,500+ fully-measured runs submitted as of July 2026, the median score is 526 and the top 5% exceed 2,148 — real figures from the live database, not projections. (An earlier version of this paragraph claimed a median of ~1200; that number predated the data.) A single weak component cannot be masked by strong ones because the composite uses a geometric mean.

For example, a 2024 MacBook Pro M3 Pro typically scores around 2100 in 9bench — placing it firmly in the "Strong mainstream" bracket. A budget Chromebook with an integrated GPU usually lands below 400.

Why was UserBenchmark banned?

In 2019, r/hardware and r/pcmasterrace banned UserBenchmark.com for documented anti-AMD bias (source). Their scoring formula systematically over-weights single-core Intel performance, producing rankings that independent reviewers flagged as misleading.

9bench was built as a transparent alternative: every formula and weight is published on the methodology page and in the MIT-licensed source code. No vendor has paid or can pay to influence the scoring.

Which browsers support 9bench?

9bench uses WebGPU for the GPU sub-score, as defined in the W3C WebGPU specification. Browsers with full WebGPU support:

• Chrome 113+ and Edge 113+ — full WebGPU support since May 2023
• Firefox 147+ — stable WebGPU since early 2026
• Safari 26+ — macOS Tahoe, iOS 26, iPadOS 26, visionOS 26

Without WebGPU, the CPU and RAM tests still run. The GPU shows "not measured" (never zero), the overall score is rebalanced over CPU + RAM, and the run is ranked against other CPU+RAM runs rather than the main leaderboard. It isn't only old browsers: Android GPU-vendor allowlists and Linux builds are affected too, so a current Chrome is no guarantee.

Tips for accurate benchmark results

You should follow these steps to get the most reliable scores from 9bench:

1. Close background apps — browser tabs, video calls, and downloads compete for CPU and RAM bandwidth, which can reduce your scores by 10–30%.
2. Plug in your laptop — battery-saver mode throttles clock speeds by 20–40%, which directly lowers benchmark results.
3. Run 2–3 times — pick the highest score. Variance of ±5–10% between runs is normal; ±30% or more indicates background contention.
4. Use Chrome or Edge for the most accurate GPU scores — their WebGPU implementations are the most mature as of 2026.

Verdict: who should use 9bench?

Use 9bench if you want to quickly compare machines (for example, "is this 5-year-old laptop worth upgrading?"), test hardware in corporate environments where installing software is restricted, or share benchmark results via a permalink without creating an account.

Use Geekbench if you need absolute peak scores for a hardware review. Use Cinebench for sustained multi-core rendering performance numbers. Use 3DMark for gaming-specific GPU benchmarks. 9bench doesn't replace any of them and doesn't try to: it fills the gap they leave — the machine you can't install anything on, the 15 seconds you actually have, the "can this thing run local AI?" question none of them answer. Different job, honestly labelled.

About the author: Built by the developer behind Toololis (668 browser-based utility tools). Verified author identity with schema-linked LinkedIn + GitHub profiles. 9bench is part of the Truth Series — tools with transparent methodology and open-source code. First published April 15, 2026. Last updated July 29, 2026.