作者： Jakub Rusinowski · 最后更新： 2025年4月28日
Yes, but it is tight
Yes, but it is tight — Qwen 3 14B at Q5_K_M needs about 12.6 GB of the 12.8 GB usable on 16 GB system RAM, leaving only ~0.2 GB before the runtime starts swapping. Expect ~5.9 tok/s (estimated), with room for about 8,192 tokens of context.
Confidence: medium · Recommended quantization: Q5_K_M · Estimated speed: ~5.9 tok/s
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| Usable memory for models | 12.8 GB |
| Memory bandwidth | 90 GB/s |
| Quant | Memory needed | Fits 12.8 GB? | Max context | Est. speed | Download |
|---|---|---|---|---|---|
| F16 | 31.7 GB | ✗ No | — | — | 29.6 GB |
| Q8_0 | 17.9 GB | ✗ No | — | — | 15.7 GB |
| Q6_K | 14.3 GB | ✗ No | — | — | 12.1 GB |
| Q5_K_M | 12.6 GB | ✓ Yes | 8K | ~5.9 tok/s | 10.5 GB |
| Q4_K_M | 11.1 GB | ✓ Yes | 16K | ~6.9 tok/s | 8.9 GB |
| Q3_K_M | 8.5 GB | ✓ Yes | 32K | ~9.4 tok/s | 6.3 GB |
| Q2_K | 7 GB | ✓ Yes | 32K | ~11.8 tok/s | 4.9 GB |
| Variant | Needs at Q4_K_M | Fits? | Est. speed |
|---|---|---|---|
| Qwen 3 235B-A22B (MoE) | 144.3 GB | ✗ Too large | — |
| Qwen 3 32B | 22.8 GB | ✗ Too large | — |
| Qwen 3 30B-A3B (MoE) | 20 GB | ✗ Too large | — |
| Qwen 3 14B | 11.1 GB | ✓ Fits | ~6.9 tok/s |
| Qwen 3 8B | 7 GB | ✓ Fits | ~11.8 tok/s |
llama.cpp (CPU build) or Ollama — both run without a GPU
Yes, but it is tight — Qwen 3 14B at Q5_K_M needs about 12.6 GB of the 12.8 GB usable on 16 GB system RAM, leaving only ~0.2 GB before the runtime starts swapping. Expect ~5.9 tok/s (estimated), with room for about 8,192 tokens of context.
Q5_K_M — it needs about 12.6 GB of the 12.8 GB available, downloads as roughly 10.5 GB, and runs at an estimated 5.9 tokens/sec with up to 8K of context.
Nothing binding — the model fits with headroom and generates at a usable speed on this hardware.
llama.cpp (CPU build) or Ollama — both run without a GPU