Performance isn't a single static number. It changes based on what you play, how you play, and the specific balance of your hardware. Here is the engineering behind our results.
A bottleneck occurs when one component in your PC limits the performance of the others. Think of it like a team relay race: the team is only as fast as its slowest runner.
The processor cannot send instructions fast enough. The graphics card sits idle waiting for work.
The graphics card is at 100% usage rendering visuals. The CPU has idle time. This is desirable in gaming.
Both components are utilized effectively. Performance is optimized for the hardware cost.
If you visit three different bottleneck calculators, you might get three different results. Why?
Dynamic Pressure Index: System analysis beyond simple numbers.
Instead of guessing frame rates, we calculate System Pressure. Every application exerts "pressure" on your CPU and GPU.
The DPI Engine takes your hardware tiers and modifies their effective power based on three critical variables:
The component that hits 100% pressure first is the bottleneck. The difference in pressure between the two components determines the "Bottleneck Strength %".
The GPU renders frames extremely fast. The CPU must work overtime to process physics and inputs for each frame.
Modern sweet spot. The GPU has enough work to do, giving the CPU breathing room.
Millions of pixels to render. The GPU becomes the limit long before the CPU breaks a sweat.
We don't just give you a number; we tell you how sure we are.
A single percentage is often misleading. Our Bottleneck Heatmap visualizes how your build performs across 35 different scenarios (5 resolutions × 7 refresh rates) instantly.
Use the heatmap to find your "Sweet Spot" resolution.
While our DPI model is sophisticated, it is an estimation engine, not a crystal ball.
Last Updated: January 2026 | Model: DPI™ v2.4
In the real world, no. There is always one component that limits the maximum frame rate, even if that limit is 500 FPS. A 'Balanced' result in our calculator means the components are well-matched, not that there is zero limiting factor.
Resolution primarily affects the GPU. Increasing resolution (e.g., 1080p to 4K) increases the load on the GPU while CPU load remains mostly static. This can shift a system from being CPU-bottlenecked to GPU-bottlenecked.
Not necessarily. A bottleneck below 15-20% is often unnoticeable during gameplay. It simply means one component has a bit more headroom than the other. Upgrade only if you are experiencing performance issues.
No. FPS varies wildly based on game updates, driver versions, and specific scenes. We use a 'Pressure Model' (DPI) that compares hardware tier capabilities against standard workload demands to estimate where the limit lies.