Can I Run Qwen 3.5 on NVIDIA GeForce RTX 4070 Super?
Written by Jakub Rusinowski · Last updated September 29, 2026
Yes, comfortably — Qwen 3.5 9B at Q4_K_M needs 6.5 GB at 8K context (5.4 GB weights + 1.1 GB KV cache/overhead), leaving ~5.5 GB of the NVIDIA GeForce RTX 4070 Super's 12 GB, at ~71 tok/s (est.), with room for up to 128K context.
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NVIDIA GeForce RTX 4070 Super Specs
| VRAM | 12 GB |
| Memory Bandwidth | 504 GB/s |
Qwen 3.5 9B on the NVIDIA GeForce RTX 4070 Super: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 19.1 GB | ✗ No | — | — |
| Q8_0 | 10.6 GB | ✓ Yes | 32K | Build for this |
| Q6_K | 8.4 GB | ✓ Yes | 64K | — |
| Q5_K_M | 7.4 GB | ✓ Yes | 128K | — |
| Q4_K_M | 6.5 GB | ✓ Yes | 128K | Build for this |
| Q3_K_M | 4.9 GB | ✓ Yes | 128K | — |
| Q2_K | 4 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 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 Super: 8K 6.5 GB · 32K 7.3 GB · 128K 10.5 GB. Every window this model publishes still fits 12 GB.
No compatible GPU? Qwen 3.5 9B on 16 GB of system RAM, CPU only: runs.
Qwen 3.5 Sizes That Fit the NVIDIA GeForce RTX 4070 Super (at 8K context)
| Qwen 3.5 9B | Q4_K_M · 6.5 GB at 8K context · ~71 tok/s (est.) |
| Qwen 3.5 4B | Q4_K_M · 3.5 GB at 8K context · ~130 tok/s (est.) |
| Qwen 3.5 2B | Q4_K_M · 2.7 GB at 8K context · ~178 tok/s (est.) |
| Qwen 3.5 0.8B | Q4_K_M · 1.8 GB at 8K context · ~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
Is the NVIDIA GeForce RTX 4070 Super enough to run Qwen 3.5 locally?
Yes, comfortably — Qwen 3.5 9B at Q4_K_M needs 6.5 GB at 8K context (5.4 GB weights + 1.1 GB KV cache/overhead), leaving ~5.5 GB of the NVIDIA GeForce RTX 4070 Super's 12 GB, at ~71 tok/s (est.), with room for up to 128K context.
What's the best Qwen 3.5 size for the NVIDIA GeForce RTX 4070 Super?
Qwen 3.5 9B at Q4_K_M quantization needs 6.5 GB at 8K context (5.4 GB weights + 1.1 GB KV cache/overhead), estimated ~71 tokens/sec, up to 128K context.
Every Qwen 3.5 size on the NVIDIA GeForce RTX 4070 Super
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| Qwen 3.5 397B-A17B | 139 GB | Does not fit | — |
| Qwen 3.5 122B-A10B | 77.3 GB | Does not fit | — |
| Qwen 3.5 35B-A3B | 23.8 GB | Does not fit | — |
| Qwen 3.5 27B | 18.8 GB | Runs at Q2_K | — |
| Qwen 3.5 9B | 6.5 GB | Runs | ~71 tok/s |
| Qwen 3.5 4B | 3.5 GB | Runs | ~130 tok/s |
| Qwen 3.5 2B | 2.7 GB | Runs | ~178 tok/s |
| Qwen 3.5 0.8B | 1.8 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
- Qwen 3.5 on NVIDIA GeForce RTX 3060 (12GB)
- Qwen 3.5 on Intel Arc B580
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VRAM Tier
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