CPU GPU bottleneck calculator
Check if a PC build is balanced
Choose a CPU, GPU, resolution, and workload to estimate whether performance is more likely CPU-limited, GPU-limited, or balanced.
Estimated result
Choose parts to calculate
This tool estimates balance from relative CPU and GPU performance classes, resolution, and workload type.
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Understand the result
How each limiter behaves and why resolution changes the answer.
Fixes How to fix a CPU bottleneckSettings, background tasks, cooling, and upgrade paths that actually matter.
Resolution Best resolution for a bottlenecked PCWhy 1440p or 4K can move load away from the CPU in many games.
Popular pairs
Starter bottleneck estimates
A practical 1080p pairing with mostly balanced midrange behavior.
AMD + NVIDIA Ryzen 5 5600 + RTX 4070Why this pair is stronger at 1440p than high-refresh 1080p.
Intel + NVIDIA Core i5-12400F + RTX 4070Where the CPU can limit and where the GPU still makes sense.