CPU Benchmark & Stress Test
Test your processor speed online with multi-core stress testing. Measures Integer, Float, Memory, and Crypto performance. Note: Please keep this page focused during the test.
11,106
CPU Ultimate Benchmark
Integer ยท Float ยท Memory ยท Crypto (4 Threads)
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About CPU Benchmark & Stress Test
โ๏ธ How This Benchmark Works
This tool utilizes Web Workers to spawn multiple concurrent threads, bypassing the browser's single-thread limit to fully stress your CPU's multi-core capabilities. It runs four distinct workloads to evaluate different aspects of your processor:
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Integer Performance (Logic):
- What it tests: Basic arithmetic, bitwise operations, and logical branching.
- Real-world equivalent: General application logic, file compression, JSON parsing, and UI responsiveness.
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Floating Point (Math):
- What it tests: Complex decimal calculations using trigonometric functions (Sine/Cosine), square roots, and division.
- Real-world equivalent: Physics simulations in games, image processing, 3D rendering, and scientific calculations.
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Memory Bandwidth (RAM):
- What it tests: Randomly reading and writing to large data arrays to intentionally cause "Cache Misses," forcing the CPU to fetch data from the main RAM.
- Real-world equivalent: Handling large datasets, video editing, and loading heavy web pages.
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Cryptography (Hash):
- What it tests: Simulates cryptographic hashing algorithms and string manipulation.
- Real-world equivalent: HTTPS connections, blockchain verifications, and secure data transmission.
โ ๏ธ Why isn't my exact CPU model shown?
You might notice the result shows something like "Windows (16 Threads)" instead of "Intel Core i9-14900K".
This is a browser privacy feature. Modern web browsers (Chrome, Safari, Edge, Firefox) run in a secure "sandbox" that strictly blocks websites from reading your specific hardware identifiers to prevent "Digital Fingerprinting" (tracking you across the web).
We can only strictly access:
- Logical Cores: Via
navigator.hardwareConcurrency. - Operating System: Via your User Agent string.
We combine these to give you a "Best Guess" device label, but purely web-based tools cannot legally access your exact hardware model name.