Can I Run Qwen 3.5 35B-A3B on NVIDIA GeForce RTX 4070 Super?
Written by Jakub Rusinowski · Last updated September 29, 2026
No. Qwen 3.5 35B-A3B needs 23.8 GB at 8K context (21.1 GB weights + 2.7 GB KV cache/overhead) at Q4_K_M and the NVIDIA GeForce RTX 4070 Super has only 12 GB. No quantization we publish closes a gap that size.
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The numbers
| Model | Qwen 3.5 35B-A3B |
| Parameters | 35B (3B active) |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 23.8 GB |
| NVIDIA GeForce RTX 4070 Super VRAM | 12 GB |
| Verdict | Does not fit |
Qwen 3.5 35B-A3B on the NVIDIA GeForce RTX 4070 Super: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 72.7 GB | ✗ No | — | — |
| Q8_0 | 39.9 GB | ✗ No | — | Build for this |
| Q6_K | 31.4 GB | ✗ No | — | — |
| Q5_K_M | 27.5 GB | ✗ No | — | Build for this |
| Q4_K_M | 23.8 GB | ✗ No | — | Build for this |
| Q3_K_M | 17.6 GB | ✗ No | — | — |
| Q2_K | 14.2 GB | ✗ No | — | — |
Assumes an 8K-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 Super: 8K 23.8 GB ✗ · 32K 29.4 GB ✗ · 128K 52 GB ✗. Past 8K it no longer fits 12 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
What to do next
Either step down to a smaller size in this family, or move to a NVIDIA GeForce RTX 5090 Laptop GPU (24 GB), the card with the least memory we track that holds it.
No compatible GPU? Qwen 3.5 35B-A3B on 32 GB of system RAM, CPU only: runs, but it is tight.
Qwen 3.5 35B-A3B needs ~24 GB but this GPU has 12 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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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 4070 Super
- Qwen 3.5 397B-A17B — does not fit (139 GB)
- Qwen 3.5 122B-A10B — does not fit (77.3 GB)
- Qwen 3.5 27B — runs at a lower quant (18.8 GB)
- Qwen 3.5 9B — runs (6.5 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 35B-A3B on nearby hardware
- Intel Arc B570 (10 GB) — does not fit
- AMD Radeon RX 7900 XT (20 GB) — runs at a lower quant
All Qwen 3.5 sizes on the NVIDIA GeForce RTX 4070 Super | Qwen 3.5 35B-A3B model page | NVIDIA GeForce RTX 4070 Super GPU page | VRAM calculator | Check your hardware