Qwen3.5 122B A10B needs ~80.1 GB but RTX PRO 5000 Blackwell 48GB only has 48.0 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
222.4 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
2.0 tok/s
TTFT
96800 ms
Safe context
4K
Memory
270.4 GB / 48.0 GB
Offload
80%
Usable VRAM is the main blocker for this model.
Not enough usable memory
The model needs 80.1 GB, but this setup only exposes 48.0 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 | 5.7 tok/s | 18456 ms | 4K |
| Coding | F | Too heavy | 4.7 tok/s | 40948 ms | 4K |
| Agentic Coding | F | Too heavy | 3.4 tok/s | 83272 ms | 4K |
| Reasoning | F | Too heavy | 4.7 tok/s | 48393 ms | 4K |
| RAG | F | Too heavy | 3.4 tok/s | 104090 ms | 4K |
How Qwen3.5 122B A10B (122B params) fits at each quantization level on RTX PRO 5000 Blackwell 48GB (48.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 47.6 GB | Low | F0 |
Q3_K_S | 3 | 59.8 GB | Low | F0 |
NVFP4 | 4 | 68.3 GB | Medium | F0 |
Q4_K_M | 4 | 74.4 GB | Medium | F0 |
Q5_K_M | 5 | 87.8 GB | High | F0 |
Q6_K | 6 | 100.0 GB | High | F0 |
Q8_0 | 8 | 130.5 GB | Very High | F0 |
F16 | 16 | 250.1 GB | Maximum | F0 |
アップグレードオプション
RTX PRO 6000 Blackwell Workstation Edition 96GBコスパ重視Makes 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.
〜$9,999 MSRP
RTX PRO 6000 Blackwell Server Edition 96GBコスパ最良Makes 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.
〜$9,999 MSRP
NVIDIA H20 96GBNVIDIAアップグレードMakes 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.
〜$12,000 MSRP
No, Qwen3.5 122B A10B requires more memory than RTX PRO 5000 Blackwell 48GB provides.
Qwen3.5 122B A10B (122B parameters) requires approximately 80.1 GB of memory with Q3_K_M quantization.
The recommended quantization for Qwen3.5 122B A10B is Q3_K_M, which balances quality and memory efficiency.
On RTX PRO 5000 Blackwell 48GB, Qwen3.5 122B A10B achieves approximately 4.7 tokens per second decode speed with a time-to-first-token of 40948ms using Q3_K_M quantization.
For coding workloads, Qwen3.5 122B A10B on RTX PRO 5000 Blackwell 48GB receives a F grade with 4.7 tok/s and 4K context.
On RTX PRO 5000 Blackwell 48GB, Qwen3.5 122B A10B 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--qwen3-5-122b-a10b-gguf-on-rtx-pro-5000-blackwell-48gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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