CPU GPU Bottleneck Calculator
Bottleneck Calculator
Check whether a PC build is more likely to be limited by CPU, GPU, RAM, or VRAM across 1080p, 1440p, ultrawide, and 4K workloads.
- Hardware rows
- 21
- Workload profiles
- 5
- Source policy
- Open
- Result type
- Estimate
Result
Likely limiting component
balanced
Bottleneck estimate
0%
Severity
none
CPU score
72
GPU score
55.6
Recommendation
- This pairing is broadly balanced for the selected resolution and workload profile.
Warnings
Confidence: medium
Sources: AMD, Best Bottleneck Calculator, NVIDIA
Estimate only. This is not measured FPS.
Why the number changes
CPU bottleneck vs GPU bottleneck
A CPU bottleneck usually appears at lower resolutions or very high frame-rate targets, where frame pacing, cache, and simulation work matter more.
A GPU bottleneck is normal at high resolutions. At 4K, the graphics card often becomes the expected limit, so the calculator applies tolerance before calling it a problem.
Visual workload map
The result follows component pressure, not a magic score
A balanced build can still become CPU-limited in esports, GPU-limited at 4K, or memory-limited when a game exceeds RAM or VRAM recommendations.
That is why the calculator changes the answer when you change resolution, workload profile, or memory size instead of returning one fixed bottleneck percentage for every situation.
Popular combinations
CPU GPU bottleneck checks
Ryzen 5 7600X and RTX 4070 Super
Mainstream 1440p gaming pairing with strong value and generally balanced performance.
Ryzen 7 7800X3D and RTX 4090
High-end gaming pairing for 1440p high-refresh and 4K gaming.
Ryzen 7 9800X3D and RTX 5090
Flagship gaming-focused build for very high-end GPUs and high refresh targets.
Ryzen 5 7600X and RTX 4090
Useful stress-test pair for showing how CPU limits shrink as resolution rises.
Core i5-13600K and RTX 4070 Super
Popular Intel midrange gaming and productivity pairing.
Core i5-14600K and RTX 4080 Super
Strong upper-midrange pairing for 1440p ultra and 4K gaming.
Method
How this bottleneck calculator works
Static hardware specs come from official product pages. The balance result comes from normalized internal indexes, resolution weights, workload profiles, and memory checks.
Official specs first
Intel, AMD, and NVIDIA pages are used for cores, clocks, cache, VRAM, bandwidth, and board power.
Estimates stay labeled
Performance indexes are model inputs. We do not present them as raw benchmark tables or exact FPS.
Resolution-aware
1080p, 1440p, ultrawide, and 4K are weighted differently because bottlenecks move as GPU load changes.
Memory warnings
RAM and VRAM shortfalls are reported separately from CPU/GPU balance so the recommendation is clearer.
Bottleneck calculator FAQ
What is a bottleneck calculator?
A bottleneck calculator estimates whether the CPU, GPU, RAM, or VRAM is more likely to limit a selected PC build, resolution, and workload.
Is the bottleneck percentage exact?
No. The percentage is a relative estimate based on official hardware specs, normalized internal indexes, resolution, and workload profiles. It is not measured FPS.
Why does 4K often show less CPU bottleneck?
Higher resolutions increase GPU work. A CPU limit that matters at 1080p can become less visible at 1440p or 4K because the GPU becomes the normal limiting component.
Can I compare CPU and GPU upgrades?
Yes. Choose a different processor, graphics card, resolution, or workload profile and compare how the limiting component and recommendation changes.
Where does the hardware data come from?
Static specifications come from official Intel, AMD, and NVIDIA pages. Performance indexes are internal estimates and are clearly labeled as estimates.