Estimate whether a PC build is more likely to be CPU-bound or GPU-bound for gaming, streaming, or general workloads.
Calculator
Result Summary
Review the main answer, supporting values, chart breakdown, and calculation details.
Result Breakdown
Calculation Details
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How it works
Estimate whether a PC build is more likely to be CPU-bound or GPU-bound for gaming, streaming, or general workloads. Use the units shown in the calculator and review every assumption before using the result.
Formula
Bottleneck index compares weighted CPU performance, GPU performance, target resolution, refresh rate, and workload demand.
Worked example
A mid-range CPU paired with a high-end GPU at 1080p high refresh can show a higher CPU bottleneck than the same build at 4K.
Important assumptions
This tool is designed for planning and comparison. Real-world prices, manufacturer ratings, building requirements, lender terms, electrical codes, tolerances, and product specifications can vary.
Frequently asked questions
Is this calculator free?
Yes. It runs in your browser and does not require an account.
Are the results exact?
The math is deterministic for the entered values, but the result depends on inputs and assumptions. Verify safety-critical, financial, code-related, towing, fitment, and manufacturer-specific decisions with authoritative information.