The Myth of the Single Bottleneck Percentage
Many legacy PC calculator websites present users with a single percentage score like "24.6% Bottleneck". In the real world of PC architecture, this number is completely fictitious and misleading.
Every PC Always Has a Bottleneck
If a computer had zero bottlenecks, it would generate infinite frames per second. In any given millisecond, your frame rate is constrained by one of four physical limits:
- The GPU Compute Limit: The graphics card is at 99% usage calculating shaders, geometry, and lighting. (This is the ideal state for AAA gaming).
- The CPU Draw-Call Ceiling: The CPU single-thread is at its limit sending instructions to the DirectX/Vulkan API. (Normal in 300+ FPS esports titles).
- VRAM Throughput / Buffer: The GPU runs out of dedicated high-speed GDDR memory.
- Display Refresh Rate: The monitor's G-Sync/FreeSync cap locks frame delivery to match the refresh rate.