CPU Comparison
Compare up to 4 CPUs by SPECint2017 score, performance-per-core, and performance-per-watt
How to use CPU Comparison
- 1Enter the specifications of CPU A: core count, base/boost clock, and a reference benchmark score.
- 2Enter the same details for CPU B you want to compare against.
- 3Read the normalized performance score and performance-per-dollar rating to decide which offers better value.
How to compare CPUs objectively
perfIndex = cores × clockGHz × ipcFactor; value = perfIndex / priceUSDClock speed alone does not determine real-world speed; core count, architecture (IPC) and cache also matter, so a lower-clocked newer chip can beat an older high-clocked one.
Performance-per-dollar normalizes the score by price so you can see which CPU gives more compute for the money, which is especially useful when building on a budget.
Frequently asked questions
Is higher clock speed always better?
Not necessarily. Higher IPC and more cores often outweigh a small clock advantage, and thermals limit sustained boost.
What is performance per dollar?
It divides a normalized performance score by the price, highlighting the most cost-effective option.
Should I trust vendor benchmark numbers?
Use independent benchmarks where possible; vendor figures can reflect optimized workloads that differ from yours.
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