DeepSeek V4 Flash needs ~174.0 GB but MacBook Pro M4 Max 128GB only has 92.2 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
81.8 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
5.2 tok/s
TTFT
37210 ms
Safe context
4K
Memory
174.0 GB / 92.2 GB
Offload
50%
Usable shared or unified memory is the main blocker for this model.
Not enough usable memory
The model needs 174.0 GB, but this setup only exposes 92.2 GB of usable shared or unified memory.
Move to a larger memory pool
A larger unified-memory SKU or a discrete high-bandwidth GPU is the cleanest way to make this model practical.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | F | Too heavy | 5.2 tok/s | 20213 ms | 4K |
| Coding | F | Too heavy | 5.2 tok/s | 37210 ms | 4K |
| Agentic Coding | F | Too heavy | 5.2 tok/s | 54480 ms | 4K |
| Reasoning | F | Too heavy | 5.2 tok/s | 43975 ms | 4K |
| RAG | F | Too heavy | 5.2 tok/s | 68100 ms | 4K |
How DeepSeek V4 Flash (284B params) fits at each quantization level on MacBook Pro M4 Max 128GB (92.2 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 110.8 GB | Low | F0 |
Q3_K_S | 3 | 139.2 GB | Low | F0 |
NVFP4 | 4 | 159.0 GB | Medium | F0 |
Q4_K_M | 4 | 173.2 GB | Medium | F0 |
Q5_K_M | 5 | 204.5 GB | High | F0 |
Q6_K | 6 | 232.9 GB | High | F0 |
Q8_0 | 8 | 303.9 GB | Very High | F0 |
F16 | 16 | 582.2 GB | Maximum | F0 |
Upgrade options
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.
~$6,999 MSRP
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.
~$8,000 MSRP
No, DeepSeek V4 Flash requires more memory than MacBook Pro M4 Max 128GB provides.
DeepSeek V4 Flash (284B parameters) requires approximately 174.0 GB of memory with NVFP4 quantization.
The recommended quantization for DeepSeek V4 Flash is NVFP4, which balances quality and memory efficiency.
On MacBook Pro M4 Max 128GB, DeepSeek V4 Flash achieves approximately 5.2 tokens per second decode speed with a time-to-first-token of 37210ms using NVFP4 quantization.
For coding workloads, DeepSeek V4 Flash on MacBook Pro M4 Max 128GB receives a F grade with 5.2 tok/s and 4K context.
On MacBook Pro M4 Max 128GB, DeepSeek V4 Flash can safely use up to 4K tokens of context. The model's official context limit is 1.0M, but available memory constrains the safe maximum.
Move to a larger memory pool. A larger unified-memory SKU or a discrete high-bandwidth GPU is the cleanest way to make this model practical.
Not always. MacBook Pro M4 Max 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.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/deepseek-v4-flash-on-m4-max-128gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
Preview:
