Why Benchmark Your Processor inside the Browser?

Benchmarking is a key method to evaluate your processor's processing capacity, core temperatures, and thermal stability. While traditional benchmarks require downloading heavy, complex desktop apps, you can run lightweight stress simulations directly in your web browser. This is extremely useful when comparing device speeds, checking thermal throttle thresholds under heavy web workloads, or testing hardware stability. Our online CPU benchmark simulator performs math calculation loops across multiple threads locally in your browser. Run the simulation at /devicelab/device-info/cpu-benchmark-simulator.

Floating-Point Arithmetic and Multi-Thread Stress Testing

A benchmark simulates heavy workloads by asking the processor to calculate prime numbers or complex math problems. Testing single-thread speed measures how fast a single core processes instructions, while multi-thread testing utilizes Web Workers to run loops across all hardware cores, testing your processor's true limits.

How to Safely Run a Web CPU Benchmark

To benchmark your processor, go to /devicelab/device-info/cpu-benchmark-simulator. Select your thread count and test duration, and start the simulation. The tool will run mathematical calculations on your CPU cores, tracking calculations per second (FLOPS) and rendering a live performance score. Close other tabs during the test to get accurate results.