Core Components
Select your processor and graphics card.
The brain of your computer.
Handles rendering images and video.
About the PC Bottleneck Analyzer
Building or upgrading a PC can be complicated, especially when trying to ensure that your CPU and GPU are perfectly matched. A PC bottleneck occurs when one component limits the performance of the entire system. For instance, if you pair a high-end graphics card like an RTX 4090 with an older processor like a Ryzen 5 3600, your CPU will struggle to feed data to the GPU fast enough. The result? Lower frame rates and wasted money.
How does this tool calculate bottlenecks?
Our analyzer goes beyond simple percentage calculators. We use a multifaceted heuristic approach that considers:
- Target Resolution: Bottlenecks shift drastically based on your monitor. At 1080p, the CPU must work incredibly fast to keep up with high frame rates. At 4K, the burden shifts heavily to the GPU.
- Component Generations: We evaluate the IPC (Instructions Per Clock) of your CPU and the architectural efficiency of your GPU to determine real-world performance headroom.
- RAM & Storage: Insufficient memory capacity or slow mechanical hard drives can introduce severe stuttering, even if your processor and graphics card are top-tier.
When should you upgrade?
Not every bottleneck requires an immediate upgrade. Every computer has a bottleneck—otherwise, you would get infinite frame rates. The goal is to ensure the limiting factor is your GPU, running at nearly 100% utilization, while achieving your desired frame rate (e.g., 60 FPS or 144 FPS). If your system is hitting your performance goals smoothly, you don't need to spend money just to fix a theoretical bottleneck score.
Is this data 100% accurate for every game?
No bottleneck calculator can be perfectly accurate for every single game. Titles like Cyberpunk 2077 with RT Overdrive are heavily GPU-bound, while games like Counter-Strike 2 or simulation games like Microsoft Flight Simulator demand massive CPU cache and single-core speed. Our recommendations serve as a highly educated baseline to guide your purchasing decisions, helping you avoid glaring mismatches.