Performance Score System

Each GPU and CPU is assigned a normalized performance score derived from aggregated benchmark data including SPECviewperf, 3DMark, PassMark, and real-world gaming benchmarks. Scores are calibrated relative to each other to accurately reflect real gaming performance differences.

Bottleneck Calculation

We calculate the effective CPU score at your chosen resolution, then compute the ratio between CPU and GPU scores. A ratio below 0.85 indicates a CPU bottleneck; above 1.15 indicates a GPU bottleneck. Bottleneck percentage is derived from the deviation from this ideal 0.85–1.15 balance range.

Resolution Weighting

At higher resolutions, the GPU does significantly more work (more pixels to render), reducing CPU bottleneck. Our resolution multipliers: 1080p = 1.0×, 1440p = 0.7×, 4K = 0.4× applied to the CPU score, reflecting this shift in workload.

Accuracy and Limitations

Results are typically within 10-15% of measured real-world bottleneck. Variables like RAM speed, game engine, driver version, and operating temperature affect actual results. Our tools are best used for pre-purchase planning and general upgrade guidance.

Data is reviewed and updated quarterly. If you notice inaccurate results for a specific combination, please contact us.