What we measure
Our CPU benchmark test measures processor throughput, single-core responsiveness, multi-core scaling, and score stability under sustained compute load. Workloads include integer sieving, floating point matrix math, mixed kernels, and optional crypto-style hashing.
Single-core phases run on the main browser thread. Multi-core phases distribute parallel work through Web Workers across your logical processor count. Extreme mode combines both for maximum stress testing.
How scores relate to real-world performance
Single-core scores correlate with gaming responsiveness, UI snappiness, and lightly threaded apps. Multi-core scores correlate with video editing, rendering, compilation, streaming, and virtualization.
Stability percentage shows whether performance holds steady or drops from thermal throttling and background interference during the test window.
Limitations and fair comparison
Browser-based CPU benchmark testing reflects JavaScript engine performance and Web Worker scheduling in addition to raw hardware capability. Scores are not directly interchangeable with native Geekbench, Cinebench, or PassMark results.
For accurate CPU benchmark comparison, use identical settings, power mode, and browser version. Run multiple passes and average results before making upgrade or purchasing decisions.