Find what’s holding your PC back — in 10 seconds
Analyze CPU, GPU, resolution, RAM, and workload to reveal bottlenecks and upgrade paths.
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What is Bottleneck Calculator?
A Bottleneck Calculator is a tool used to evaluate how well PC components work together and identify potential performance limitations. For example, pairing a high-end graphics card with an older-generation processor for gaming or 3D animation can create a bottleneck. In this situation, the CPU limits the system’s performance, preventing the GPU from operating at its full potential.
How It Works
1
Select Your Parts
Choose your CPU, GPU, RAM, and target resolution from our database.
2
Run Analysis
Our algorithm simulates real-world workloads to identify bottlenecks.
3
Get Upgrade Guidance
Receive personalized recommendations to optimize your build.
What is a Bottleneck?
A bottleneck occurs when one component in your PC limits the performance of another. It’s like a highway where one lane is blocked—traffic can only move as fast as the slowest point.
Key Takeaway
Some bottleneck is normal. Aim for balanced components that match your resolution and use case.
The Performance Pipeline
CPU
Processes game logic & physics
GPU
Renders graphics & frames
FPS OUTPUT
Your gaming experience
The weakest link determines your maximum FPS
Key Factors We Analyze
Understanding what impacts your system’s performance
CPU Performance
Core count and clock speed affect frame times in CPU-bound games.
Quick fix: Consider upgrading to a higher core-count processor.
GPU Power
VRAM and shader performance directly impact visual fidelity.
Quick fix: Upgrade to a GPU with more VRAM for higher resolutions.
RAM Capacity
16GB is the sweet spot for modern games.
Quick fix: Add more RAM sticks or upgrade to higher capacity.
CPU Performance
More cores help with encoding while gaming simultaneously.
Quick fix: Consider upgrading to a higher core-count processor.
GPU Power
NVENC/VCE encoding offloads work from CPU.
Quick fix: Upgrade to a GPU with more VRAM for higher resolutions.
RAM Capacity
32GB recommended for streaming + gaming.
Quick fix: Add more RAM sticks or upgrade to higher capacity.
Storage Speed
Fast storage prevents recording stutters.
Quick fix: Consider upgrading to a higher core-count processor.
Resolution Impact
1080p streaming is standard, 4K is demanding.
Quick fix: Upgrade to a GPU with more VRAM for higher resolutions.
Thermal & Power
Extended sessions require stable thermals.
Quick fix: Add more RAM sticks or upgrade to higher capacity.
CPU Performance
Core count and clock speed affect frame times in CPU-bound games.
Quick fix: Consider upgrading to a higher core-count processor.
GPU Power
VRAM and shader performance directly impact visual fidelity.
Quick fix: Upgrade to a GPU with more VRAM for higher resolutions.
RAM Capacity
16GB is the sweet spot for modern games.
Quick fix: Add more RAM sticks or upgrade to higher capacity.
CPU Performance
Core count and clock speed affect frame times in CPU-bound games.
Quick fix: Consider upgrading to a higher core-count processor.
GPU Power
VRAM and shader performance directly impact visual fidelity.
Quick fix: Upgrade to a GPU with more VRAM for higher resolutions.
RAM Capacity
16GB is the sweet spot for modern games.
Quick fix: Add more RAM sticks or upgrade to higher capacity.
Why BottleneckCheck?
See how we compare to typical bottleneck calculators
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Features |
BottleneckCheck |
Typical Calculators |
Frequently Asked Questions
Got questions? We’ve got answers.
Ready to optimize your build?
Run a quick check and get upgrade guidance in seconds.