CPU Benchmark Calculator
Estimate CPU single-thread and multi-thread performance scores from core count, clock speed, and IPC factor. Get an approximate Cinebench-style score.
How to Use the CPU Benchmark Calculator
- Enter the number of CPU cores.
- Enter the boost clock speed in GHz.
- Enter the IPC factor (1.0 = baseline).
- Click Calculate to get estimated scores.
Anwendungsfälle
- •Comparing CPU architectures before purchasing.
- •Understanding performance scaling with more cores.
- •Estimating render times for video editing or 3D.
- •Teaching CPU performance concepts.
Formel
Single = Clock × IPC × 1000. Multi = Single × Cores × 0.85 (scaling efficiency). Cinebench ≈ Multi / 10.
Häufig gestellte Fragen
What is IPC?
IPC (Instructions Per Clock) measures how many instructions a CPU processes per clock cycle. Higher IPC = better performance per MHz.
Why the 0.85 scaling factor?
Multi-thread scaling is rarely 100% efficient due to thread coordination overhead and memory bandwidth limits.
What IPC factor should I use?
Use 1.0 as baseline. Modern CPUs (AMD Zen 4, Intel 13th gen) score around 1.3–1.5 vs older architectures.