Environment Profile
Local LLM fit analyzer
Configure hardware parameters, compare supported local models, and estimate inference performance under different quantization paths.
Memory Allocation Matrix
Model Discovery
Model explorer
Filter and compare local LLMs against the active hardware profile.Predicted inference speed
Selected model: Qwen 3.6-27B using Q4
Memory footprint
Estimated allocation for local context
Quantization Impact Matrix
Selected model: Qwen 3.6-27B. Click a row to update the active quantization and speed panels.
| Format | File Size | Required Memory | Predicted Speed | Quality | Status |
|---|---|---|---|---|---|
| Q4 | 14.9 GB | 17.6 GB | 0.4 tok/s | 88%Compact | Memory bound |
| Q5 | 18.4 GB | 21.1 GB | 0.4 tok/s | 93%Balanced | Memory bound |
| Q6 | 22.1 GB | 24.9 GB | 0.4 tok/s | 96%High fidelity | Memory bound |
| Q8 | 28.4 GB | 31.1 GB | 0.4 tok/s | 98%High fidelity | Memory bound |
| FP16 | 54.0 GB | 56.7 GB | 0.4 tok/s | 100%Reference | Memory bound |
Learning Center
Local inference guide
Understand hardware constraints, optimization strategies, and model fit.What is VRAM?
Video RAM is the critical bottleneck for local LLMs. It stores model weights during inference; when a model cannot fit entirely into fast memory, layers spill into system RAM and tokens-per-second drops fast.
Understanding Quantization
Reducing precision shrinks model weights, lowers memory bandwidth per token, and usually raises speed. The tradeoff is output fidelity: Q4 is fastest and smallest, while Q8 and FP16 preserve more detail but cost more memory.
- Q4
- 28% size2.8x speed88% quality
- Q5
- 34% size2.4x speed93% quality
- Q6
- 41% size2.1x speed96% quality
- Q8
- 53% size1.7x speed98% quality
- FP16
- 100% size1.0x speed100% quality