Can I Run Qwen 3.6 27B on NVIDIA L40S?
作者： Jakub Rusinowski · 最后更新： 2026年7月21日
Yes. Qwen 3.6 27B needs 18.3 GB at 8K context (16.8 GB weights + 1.5 GB KV cache/overhead) at Q4_K_M and the NVIDIA L40S has 48 GB, leaving about 29.7 GB of headroom, at roughly 42 tok/s (estimated) with room for up to 256K of context.
See what else this hardware can run →
The numbers
| Model | Qwen 3.6 27B |
| Parameters | 27.8B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 18.3 GB |
| NVIDIA L40S VRAM | 48 GB |
| Verdict | Runs |
| Max context | 256K |
| Estimated speed | ~42 tok/s |
Qwen 3.6 27B on the NVIDIA L40S: VRAM by quantization
| Quant | VRAM needed | Fits 48 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 57.1 GB | ✗ No | — | — |
| Q8_0 | 31 GB | ✓ Yes | 256K | Build for this |
| Q6_K | 24.3 GB | ✓ Yes | 256K | — |
| Q5_K_M | 21.2 GB | ✓ Yes | 256K | Build for this |
| Q4_K_M | 18.3 GB | ✓ Yes | 256K | Build for this |
| Q3_K_M | 13.3 GB | ✓ Yes | 256K | — |
| Q2_K | 10.6 GB | ✓ Yes | 256K | — |
Assumes an 8K-token context with an f16 KV cache. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 48 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the NVIDIA L40S: 8K 18.3 GB · 32K 19.9 GB · 128K 26.3 GB. Every window this model publishes still fits 48 GB.
What to do next
Nothing to change — run it at Q4_K_M. If you want more capability, check whether the next size up also fits.
No compatible GPU? Qwen 3.6 27B on 16 GB of system RAM, CPU only: runs.
Running Qwen 3.6 27B on this card:
At 2 hrs/day, buying (~$7,499) beats renting at $0.34/hr after about 30.6 years.
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
Other Qwen 3.6 sizes on the NVIDIA L40S
- Qwen 3.6 35B-A3B — runs (22.2 GB)
Qwen 3.6 27B on nearby hardware
- Apple M3 Pro (36 GB) — runs
All Qwen 3.6 sizes on the NVIDIA L40S | Qwen 3.6 27B model page | NVIDIA L40S GPU page | VRAM calculator | Check your hardware