Qwen3.5 9B needs ~12.6 GB VRAM. MacBook Pro M4 Pro 48GB has 34.6 GB. With Q4_K_M quantization, expect ~38 tok/s.
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
Fit status
Runs well
Decode
35.2 tok/s
TTFT
5496 ms
Safe context
349K
Memory
12.6 GB / 34.6 GB
This setup is broadly balanced for this model.
Shared-memory contention still exists
The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Runs well | 38.3 tok/s | 2758 ms | 349K |
| Coding | C | Runs well | 38.3 tok/s | 5056 ms | 349K |
| Agentic Coding | C | Runs well | 35.2 tok/s | 7994 ms | 349K |
| Reasoning | C | Runs well | 35.2 tok/s | 6495 ms | 349K |
| RAG | C | Runs well | 35.2 tok/s | 9992 ms | 349K |
How Qwen3.5 9B (9B params) fits at each quantization level on MacBook Pro M4 Pro 48GB (34.6 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 3.5 GB | Low | C43 |
Q3_K_S | 3 | 4.4 GB | Low | C43 |
NVFP4 | 4 | 5.0 GB | Medium | C43 |
Q4_K_M | 4 | 5.5 GB | Medium | C44 |
Q5_K_M | 5 | 6.5 GB | High | C44 |
Q6_K | 6 | 7.4 GB | High | C44 |
Q8_0 | 8 | 9.6 GB | Very High | C45 |
F16Best for your GPU | 16 | 18.5 GB | Maximum | C49 |
Copy-paste commands to run Qwen3.5 9B on your machine.
Run
docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
--hf-repo "lmstudio-community/Qwen3.5-9B-GGUF" \
--hf-file "Qwen3.5-9B-GGUF-Q4_K_M.gguf" \
-c 4096 -ngl 99Upgrade-Optionen
Raises estimated decode speed by about 140%.
Adds memory headroom for longer context windows and future model growth.
ca. $3,999 MSRP
Raises estimated decode speed by about 128%.
Adds memory headroom for longer context windows and future model growth.
ca. $3,999 MSRP
Raises estimated decode speed by about 94%.
Adds memory headroom for longer context windows and future model growth.
ca. $3,999 MSRP
Yes, MacBook Pro M4 Pro 48GB can run Qwen3.5 9B with a C grade (Runs well). Expected decode speed: 38.3 tok/s.
Qwen3.5 9B (9B parameters) requires approximately 12.6 GB of memory with Q4_K_M quantization.
The recommended quantization for Qwen3.5 9B is Q4_K_M, which balances quality and memory efficiency.
On MacBook Pro M4 Pro 48GB, Qwen3.5 9B achieves approximately 38.3 tokens per second decode speed with a time-to-first-token of 5056ms using Q4_K_M quantization.
For coding workloads, Qwen3.5 9B on MacBook Pro M4 Pro 48GB receives a C grade with 38.3 tok/s and 349K context.
On MacBook Pro M4 Pro 48GB, Qwen3.5 9B can safely use up to 349K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
Not always. MacBook Pro M4 Pro 48GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/hf-lmstudio-community--qwen3-5-9b-gguf-on-m4-pro-48gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview: