PC Bottleneck Calculator & Hardware Analyzer
Test your PC build for hardware bottlenecks. Calculate exact CPU bottleneck and GPU bottleneck percentage balance across 1080p, 1440p, and 4K resolutions.
PC Hardware Bottleneck Calculator
Check if your Processor (CPU) or Graphics Card (GPU) limits your PC performance at 1080p, 1440p, and 4K resolutions. Precision calculations based on single-thread clock throughput and G3D rasterization benchmarks.
Bottleneck Breakdown Across Resolutions
At 1080p, your NVIDIA GeForce RTX 4070 Super is the primary constraint. This is ideal for maximum visual settings. Upgrading your GPU will yield the biggest FPS boost.
At 1440p, your NVIDIA GeForce RTX 4070 Super is the primary constraint. This is ideal for maximum visual settings. Upgrading your GPU will yield the biggest FPS boost.
At 4K, your NVIDIA GeForce RTX 4070 Super is the primary constraint. This is ideal for maximum visual settings. Upgrading your GPU will yield the biggest FPS boost.
Understanding CPU vs GPU Bottlenecks in PC Gaming
CPU Bottleneck Calculator Details
A CPU bottleneck calculator identifies scenarios where your processor single-core clock speed limits GPU frame preparation. This frequently happens at 1080p resolution in competitive titles like Fortnite and Valorant.
GPU Bottleneck Calculator Details
A GPU bottleneck calculator detects when your graphics card shader cores or VRAM capacity run at 100% capacity while the CPU sits underutilized. This is normal and desirable at 1440p and 4K ultra settings.
Bottleneck Calculator Frequently Asked Questions
What is a PC Bottleneck Calculator and how does it measure hardware imbalance?
A PC bottleneck calculator evaluates performance bottlenecks between your CPU and GPU. It measures whether your processor cannot prepare frame data as fast as your graphics card renders pixels, or vice versa, at 1080p, 1440p, or 4K.
What is the difference between a CPU Bottleneck and a GPU Bottleneck?
A CPU bottleneck occurs when your processor single-core frequency limits frame delivery (common at 1080p esports settings). A GPU bottleneck occurs when your graphics card fillrate or VRAM capacity maxes out (common at 1440p and 4K).
What is an acceptable CPU GPU bottleneck calculator percentage for gaming?
A bottleneck percentage below 10-15% is considered well-balanced. Slight GPU bottlenecking (80-95% GPU load) is ideal for maximum visual stability and smooth 1% low frame rates.