CPU + GPU Bottleneck Calculator

Pick any CPU and any GPU and instantly see if one is holding back the other — at 1080p, 1440p, or 4K. 180+ chips covered, free, no signup.

CPU

GPU

Bottleneck Analysis

0% ↓ GPU balanced

Balanced build. CPU and GPU are well-matched for 1440p gaming.

CPU PassMark 48,000

GPU G3D Mark 39,000

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Core Ultra 7 265KF vs GeForce RTX 5090 — Bottleneck Analysis

This pairing of the Intel Core Ultra 7 265KF (48,000 PassMark) with the NVIDIA GeForce RTX 5090 (39,000 G3D Mark) is analyzed against three target resolutions. Switch resolutions above to see how the balance shifts — at 1080p the CPU has more pressure on it; at 4K the GPU does most of the work.

What do the severity levels mean?

Balanced (<10%) — both parts well-matched, no upgrade needed
Mild (10–25%) — small imbalance, performance still strong
Moderate (25–50%) — noticeable bottleneck, upgrade recommended
Severe (>50%) — major imbalance, one part is wasted

CPU + GPU Bottleneck Calculator

Bottleneck Analysis

Core Ultra 7 265KF vs GeForce RTX 5090 — Bottleneck Analysis

What do the severity levels mean?

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