~$2,499 MSRP
Gemma 3 4B needs ~8.9 GB VRAM. MacBook Pro M2 Pro 32GB has 23.0 GB. With Q4_K_M quantization, expect ~46 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
45.7 tok/s
TTFT
4240 ms
Safe context
125K
Memory
8.9 GB / 23.0 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 | B | Runs well | 45.7 tok/s | 2313 ms | 125K |
| Coding | B | Runs well | 45.7 tok/s | 4240 ms | 125K |
| Agentic Coding | A | Runs well | 45.7 tok/s | 6168 ms | 125K |
| Reasoning | B | Runs well | 45.7 tok/s | 5011 ms | 125K |
| RAG | A | Runs well | 45.7 tok/s | 7710 ms | 125K |
How Gemma 3 4B (4B params) fits at each quantization level on MacBook Pro M2 Pro 32GB (23.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 1.6 GB | Low | B65 |
Q3_K_S | 3 | 2.0 GB | Low | B65 |
NVFP4 | 4 |
Copy-paste commands to run Gemma 3 4B on your machine.
Run
ollama run gemma3:4bUpgrade options
Yes, MacBook Pro M2 Pro 32GB can run Gemma 3 4B with a B grade (Runs well). Expected decode speed: 45.7 tok/s.
Gemma 3 4B (4B parameters) requires approximately 8.9 GB of memory with Q4_K_M quantization.
The recommended quantization for Gemma 3 4B is Q4_K_M, which balances quality and memory efficiency.
On MacBook Pro M2 Pro 32GB, Gemma 3 4B achieves approximately 45.7 tokens per second decode speed with a time-to-first-token of 4240ms using Q4_K_M quantization.
For coding workloads, Gemma 3 4B on MacBook Pro M2 Pro 32GB receives a B grade with 45.7 tok/s and 125K context.
On MacBook Pro M2 Pro 32GB, Gemma 3 4B can safely use up to 125K tokens of context. The model's official context limit is 128K, but available memory constrains the safe maximum.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/gemma-3-4b-on-m2-pro-32gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
2.2 GB |
| Medium |
| B66 |
Q4_K_M | 4 | 2.4 GB | Medium | B66 |
Q5_K_M | 5 | 2.9 GB | High | B66 |
Q6_K | 6 | 3.3 GB | High | B66 |
Q8_0 | 8 | 4.3 GB | Very High | B67 |
F16Best for your GPU | 16 | 8.2 GB | Maximum | B69 |
Not always. MacBook Pro M2 Pro 32GB 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.