Qwen3.5 35B A3B needs ~27.9 GB but RTX 3080 Ti 12GB only has 12.0 GB. Try a smaller quantization or lighter model.
Operating mode
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
15.9 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
4.7 tok/s
TTFT
40831 ms
Safe context
4K
Memory
27.9 GB / 12.0 GB
Offload
60%
Usable VRAM is the main blocker for this model.
Not enough usable memory
The model needs 27.9 GB, but this setup only exposes 12.0 GB of usable VRAM.
Add more VRAM headroom
The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | F | Too heavy | 4.7 tok/s | 22271 ms | 4K |
| Coding | F | Too heavy | 4.7 tok/s | 40831 ms | 4K |
| Agentic Coding | F | Too heavy | 4.7 tok/s | 59390 ms | 4K |
| Reasoning | F | Too heavy | 4.7 tok/s | 48254 ms | 4K |
| RAG | F | Too heavy | 4.7 tok/s | 74237 ms | 4K |
How Qwen3.5 35B A3B (35B params) fits at each quantization level on RTX 3080 Ti 12GB (12.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 13.7 GB | Low | F0 |
Q3_K_S | 3 | 17.2 GB | Low | F0 |
NVFP4 | 4 | 19.6 GB | Medium | F0 |
Q4_K_M | 4 | 21.3 GB | Medium | F0 |
Q5_K_M | 5 | 25.2 GB | High | F0 |
Q6_K | 6 | 28.7 GB | High | F0 |
Q8_0 | 8 | 37.5 GB | Very High | F0 |
F16 | 16 | 71.8 GB | Maximum | F0 |
Upgrade-Optionen
RTX 5090 32GBGünstige WahlMakes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
ca. $1,999 MSRP
RTX PRO 4500 Blackwell 32GBBestes Preis-Leistungs-VerhältnisMakes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
ca. $2,499 MSRP
RTX 5000 Ada 32GBNVIDIA-UpgradeMakes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
ca. $4,000 MSRP
No, Qwen3.5 35B A3B requires more memory than RTX 3080 Ti 12GB provides.
Qwen3.5 35B A3B (35B parameters) requires approximately 27.9 GB of memory with Q4_K_M quantization.
The recommended quantization for Qwen3.5 35B A3B is Q4_K_M, which balances quality and memory efficiency.
On RTX 3080 Ti 12GB, Qwen3.5 35B A3B achieves approximately 4.7 tokens per second decode speed with a time-to-first-token of 40831ms using Q4_K_M quantization.
For coding workloads, Qwen3.5 35B A3B on RTX 3080 Ti 12GB receives a F grade with 4.7 tok/s and 4K context.
On RTX 3080 Ti 12GB, Qwen3.5 35B A3B can safely use up to 4K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
Add more VRAM headroom. The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/hf-unsloth--qwen3-5-35b-a3b-gguf-on-rtx-3080-ti-12gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
