Can I Run Qwen 3.5 9B on NVIDIA GeForce RTX 3080 (10GB)?
作者： Jakub Rusinowski · 最后更新： 2026年7月12日
Yes. Qwen 3.5 9B needs 6.6 GB at 8K context (5.4 GB weights + 1.2 GB KV cache/overhead) at Q4_K_M and the NVIDIA GeForce RTX 3080 (10GB) has 10 GB, leaving about 3.4 GB of headroom, at roughly 71 tok/s (estimated) with room for up to 64K of context.
See what else this hardware can run →
The numbers
| Model | Qwen 3.5 9B |
| Parameters | 9B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 6.6 GB |
| NVIDIA GeForce RTX 3080 (10GB) VRAM | 10 GB |
| Verdict | Runs |
| Max context | 64K |
| Estimated speed | ~71 tok/s |
Qwen 3.5 9B on the NVIDIA GeForce RTX 3080 (10GB): VRAM by quantization
| Quant | VRAM needed | Fits 10 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 19.1 GB | ✗ No | — | — |
| Q8_0 | 10.7 GB | ✗ No | — | Build for this |
| Q6_K | 8.5 GB | ✓ Yes | 32K | — |
| Q5_K_M | 7.5 GB | ✓ Yes | 64K | — |
| Q4_K_M | 6.6 GB | ✓ Yes | 64K | Build for this |
| Q3_K_M | 5 GB | ✓ Yes | 128K | — |
| Q2_K | 4.1 GB | ✓ Yes | 128K | — |
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 10 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 GeForce RTX 3080 (10GB): 8K 6.6 GB · 32K 7.4 GB · 128K 10.6 GB ✗. Past 128K it no longer fits 10 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
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 3.5 9B on 16 GB of system RAM, CPU only: runs.
Running Qwen 3.5 9B on this card:
At 2 hrs/day, buying (~$699) beats renting at $0.34/hr after about 2.9 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 3.5 sizes on the NVIDIA GeForce RTX 3080 (10GB)
- Qwen 3.5 397B-A17B — does not fit (139 GB)
- Qwen 3.5 122B-A10B — does not fit (77.3 GB)
- Qwen 3.5 35B-A3B — does not fit (23.8 GB)
- Qwen 3.5 27B — does not fit (18.8 GB)
- Qwen 3.5 4B — runs (3.5 GB)
- Qwen 3.5 2B — runs (2.7 GB)
- Qwen 3.5 0.8B — runs (1.8 GB)
Qwen 3.5 9B on nearby hardware
- AMD Radeon RX 9060 XT 8GB (8 GB) — runs
- NVIDIA GeForce RTX 5070 (12 GB) — runs
All Qwen 3.5 sizes on the NVIDIA GeForce RTX 3080 (10GB) | Qwen 3.5 9B model page | NVIDIA GeForce RTX 3080 (10GB) GPU page | VRAM calculator | Check your hardware