StarCoder2 15B needs ~17.0 GB VRAM. MacBook Pro M4 Pro 48GB has 34.6 GB. With Q4_K_M quantization, expect ~21 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
21.2 tok/s
TTFT
9120 ms
Safe context
176K
Memory
17.0 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 | 21.2 tok/s | 4975 ms | 176K |
| Coding | C | Runs well | 21.2 tok/s | 9120 ms | 176K |
| Agentic Coding | C | Runs well | 21.2 tok/s | 13266 ms | 176K |
| Reasoning | C | Runs well | 21.2 tok/s | 10778 ms | 176K |
| RAG | C | Runs well | 21.2 tok/s | 16582 ms | 176K |
How StarCoder2 15B (15B params) fits at each quantization level on MacBook Pro M4 Pro 48GB (34.6 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 5.9 GB | Low | C43 |
Q3_K_S | 3 | 7.4 GB | Low | C44 |
NVFP4 | 4 | 8.4 GB | Medium | C44 |
Q4_K_M | 4 | 9.2 GB | Medium | C45 |
Q5_K_M | 5 | 10.8 GB | High | C45 |
Q6_K | 6 | 12.3 GB | High | C46 |
Q8_0Best for your GPU | 8 | 16.1 GB | Very High | C48 |
F16 | 16 | 30.7 GB | Maximum | F0 |
Copy-paste commands to run StarCoder2 15B on your machine.
Run
lms load hf-second-state--starcoder2-15b-gguf && lms server startUpgrade options
Raises estimated decode speed by about 139%.
Adds memory headroom for longer context windows and future model growth.
~$3,999 MSRP
Raises estimated decode speed by about 127%.
Adds memory headroom for longer context windows and future model growth.
~$3,999 MSRP
Yes, MacBook Pro M4 Pro 48GB can run StarCoder2 15B with a C grade (Runs well). Expected decode speed: 21.2 tok/s.
StarCoder2 15B (15B parameters) requires approximately 17.0 GB of memory with Q4_K_M quantization.
The recommended quantization for StarCoder2 15B is Q4_K_M, which balances quality and memory efficiency.
On MacBook Pro M4 Pro 48GB, StarCoder2 15B achieves approximately 21.2 tokens per second decode speed with a time-to-first-token of 9120ms using Q4_K_M quantization.
For coding workloads, StarCoder2 15B on MacBook Pro M4 Pro 48GB receives a C grade with 21.2 tok/s and 176K context.
On MacBook Pro M4 Pro 48GB, StarCoder2 15B can safely use up to 176K 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-second-state--starcoder2-15b-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: