DeepSeek R1 Distill 32B needs ~38.2 GB VRAM. Mac Studio M2 Ultra 128GB has 92.2 GB. With Q4_K_M quantization, expect ~24 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
25.7 tok/s
TTFT
7541 ms
Safe context
33K
Memory
38.2 GB / 92.2 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 | A | Runs well | 25.7 tok/s | 4113 ms | 33K |
| Coding | A | Runs well | 23.8 tok/s | 8145 ms | 33K |
| Agentic Coding | A | Runs well | 25.7 tok/s | 10969 ms | 33K |
| Reasoning | A | Runs well | 25.7 tok/s | 8912 ms | 33K |
| RAG | A | Runs well | 25.7 tok/s | 13711 ms | 33K |
How DeepSeek R1 Distill 32B (32B params) fits at each quantization level on Mac Studio M2 Ultra 128GB (92.2 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 12.5 GB | Low | B65 |
Q3_K_S | 3 | 15.7 GB | Low | B66 |
NVFP4 | 4 |
Copy-paste commands to run DeepSeek R1 Distill 32B on your machine.
Run
ollama run deepseek-r1:32bYour hardware
| Model | Params | Grade | Decode | Capabilities |
|---|---|---|---|---|
 Devstral 2 123B Instruct | 123B | S | 6.3 tok/s | |
 Qwen 3.5 122B A10B | 122B | S |
Yes, Mac Studio M2 Ultra 128GB can run DeepSeek R1 Distill 32B with a A grade (Runs well). Expected decode speed: 23.8 tok/s.
DeepSeek R1 Distill 32B (32B parameters) requires approximately 38.2 GB of memory with Q4_K_M quantization.
The recommended quantization for DeepSeek R1 Distill 32B is Q4_K_M, which balances quality and memory efficiency.
On Mac Studio M2 Ultra 128GB, DeepSeek R1 Distill 32B achieves approximately 23.8 tokens per second decode speed with a time-to-first-token of 8145ms using Q4_K_M quantization.
For coding workloads, DeepSeek R1 Distill 32B on Mac Studio M2 Ultra 128GB receives a A grade with 23.8 tok/s and 33K context.
On Mac Studio M2 Ultra 128GB, DeepSeek R1 Distill 32B can safely use up to 33K tokens of context. The model's official context limit is 33K, 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/deepseek-r1-distill-32b-on-m2-ultra-128gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
17.9 GB |
| Medium |
| B66 |
Q4_K_M | 4 | 19.5 GB | Medium | B66 |
Q5_K_M | 5 | 23.0 GB | High | B67 |
Q6_K | 6 | 26.2 GB | High | B67 |
Q8_0 | 8 | 34.2 GB | Very High | B69 |
F16Best for your GPU | 16 | 65.6 GB | Maximum | A73 |
| 28.9 tok/s |
| Qwen 3.6 35B A3B | 35B | S | 59 tok/s |
| Qwen 3.5 35B A3B | 35B | S | 64.1 tok/s |
| Mistral Small 4 119B | 119B | S | 30.8 tok/s |
Not always. Mac Studio M2 Ultra 128GB 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.