Single Core Test
Measure single-threaded CPU performance for tasks that rely on one core
Measure your CPU's computing power with comprehensive benchmarks. Test single-core, multi-core, integer, floating-point, and cryptographic performance directly in your browser.
Comprehensive CPU performance testing solution
Measure single-threaded CPU performance for tasks that rely on one core
Test multi-threaded performance utilizing all available CPU cores
Watch benchmark progress and get instant performance scores
Multiple benchmark types to thoroughly test your CPU
Test CPU integer arithmetic performance
Test CPU floating-point calculation speed
Test CPU cryptographic operation performance
Test memory read/write performance
Test data compression/decompression speed
Test parallel processing capabilities
Follow these simple steps to benchmark your CPU
Close unnecessary applications and browser tabs to ensure accurate results.
Choose which benchmarks to run: all tests, single core, multi core, or specific operations.
Click Start Benchmark and wait for all tests to complete. Keep the tab in focus.
Analyze your scores and compare with previous runs to track performance.
CPU benchmarking is supported on all major browsers
Best performance with V8 JavaScript engine optimization
Excellent performance with Chromium-based engine
Great support with SpiderMonkey engine
Full support with JavaScriptCore engine
Common questions about CPU benchmarking
Browser benchmarks run JavaScript code which is interpreted/JIT-compiled, unlike native benchmarks that run compiled machine code. Results reflect JavaScript engine performance combined with CPU capabilities, making them useful for web application performance but not direct CPU comparisons.
Score variations are normal due to: background processes, browser garbage collection, thermal throttling, and JavaScript engine optimization. Run multiple tests and average the results for more accurate measurements.
Single-core scores depend on individual core speed and IPC (instructions per cycle). Multi-core scores scale with the number of cores but are limited by JavaScript's threading model using Web Workers. Not all workloads benefit equally from multiple cores.
Laptops often throttle CPU performance to manage heat and battery life. Ensure you're plugged in, using high-performance power mode, and the laptop has adequate cooling. Background thermal throttling can significantly reduce scores.
Close all unnecessary applications, disable browser extensions, ensure your device is plugged in and cool, use a modern browser with latest updates, and run tests multiple times. Hardware upgrades like faster RAM can also help.
Integer tests measure whole number calculations common in general computing. Float tests measure decimal calculations used in scientific/graphics work. Crypto tests measure encryption performance. Each reflects different real-world workload types.