Can I Run Qwen 3.5 on NVIDIA GeForce RTX 4070?
作者： Jakub Rusinowski · 最后更新： 2026年7月12日
Yes, comfortably — you'll have ~6.6 GB of headroom running Qwen 3.5 9B at Q4_K_M (5.4 GB, ~66 tok/s (est.)) with room for up to 32K context.
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NVIDIA GeForce RTX 4070 Specs
| VRAM | 12 GB |
| Memory Bandwidth | 504 GB/s |
Qwen 3.5 9B on the NVIDIA GeForce RTX 4070: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 19.4 GB | ✗ No | — | — |
| Q8_0 | 11 GB | ✓ Yes | 8K | Build for this |
| Q6_K | 8.8 GB | ✓ Yes | 16K | — |
| Q5_K_M | 7.8 GB | ✓ Yes | 16K | — |
| Q4_K_M | 6.8 GB | ✓ Yes | 32K | Build for this |
| Q3_K_M | 5.2 GB | ✓ Yes | 32K | — |
| Q2_K | 4.4 GB | ✓ Yes | 32K | — |
Assumes a 4K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 12 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 4070: 8K 7.4 GB · 32K 11.1 GB · 128K 25.6 GB ✗. Past 128K it no longer fits 12 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Qwen 3.5 9B on 16 GB of system RAM, CPU only: runs, but it is tight.
Qwen 3.5 Sizes That Fit the NVIDIA GeForce RTX 4070
| Qwen 3.5 9B | Q4_K_M · 5.4 GB · ~66 tok/s (est.) |
| Qwen 3.5 4B | Q4_K_M · 2.4 GB · ~119 tok/s (est.) |
| Qwen 3.5 2B | Q4_K_M · 1.2 GB · ~178 tok/s (est.) |
| Qwen 3.5 0.8B | Q4_K_M · 0.5 GB · ~259 tok/s (est.) |
At 2 hrs/day, buying (~$599) beats renting at $0.34/hr after about 2.4 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.
FAQ
Does the NVIDIA GeForce RTX 4070 have enough VRAM for Qwen 3.5?
Yes, comfortably — you'll have ~6.6 GB of headroom running Qwen 3.5 9B at Q4_K_M (5.4 GB, ~66 tok/s (est.)) with room for up to 32K context.
Which quantization of Qwen 3.5 should I use on the NVIDIA GeForce RTX 4070?
Qwen 3.5 9B at Q4_K_M quantization (5.4 GB), estimated ~66 tokens/sec, up to 32K context.
Every Qwen 3.5 size on the NVIDIA GeForce RTX 4070
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| Qwen 3.5 397B-A17B | 134 GB | Does not fit | — |
| Qwen 3.5 122B-A10B | 73.7 GB | Does not fit | — |
| Qwen 3.5 35B-A3B | 21.1 GB | Does not fit | — |
| Qwen 3.5 27B | 16.3 GB | Does not fit | — |
| Qwen 3.5 9B | 5.4 GB | Runs | ~66 tok/s |
| Qwen 3.5 4B | 2.4 GB | Runs | ~119 tok/s |
| Qwen 3.5 2B | 1.2 GB | Runs | ~178 tok/s |
| Qwen 3.5 0.8B | 0.5 GB | Runs | ~259 tok/s |
Qwen 3.5 on Other GPUs
- Qwen 3.5 on NVIDIA GeForce RTX 5070
- Qwen 3.5 on NVIDIA GeForce RTX 4070 Ti
- Qwen 3.5 on NVIDIA GeForce RTX 4070 Super
- Qwen 3.5 on NVIDIA GeForce RTX 3060 (12GB)
- Qwen 3.5 on Intel Arc B580
Popular Models on the NVIDIA GeForce RTX 4070
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- Qwen 3 on NVIDIA GeForce RTX 4070
- Qwen 2.5 Family on NVIDIA GeForce RTX 4070
VRAM Tier
Troubleshooting
Buying Guide
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