Will It Run AI

Can Granite 4.1 3B run on MacBook Pro M4 16GB?

YES — Runs Great

B67Good
Estimated — low-sample bucket· few comparable runs

Granite 4.1 3B needs ~5.7 GB VRAM. MacBook Pro M4 16GB has 11.5 GB. With Q4_K_M quantization, expect ~42 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: Very lowStack: StandardBottleneck: Memory bandwidth
Share:

Operating mode

Choose the run profile you care about

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.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) 5.7 GB, 42.0 tok/s, Runs well
5.7 GB required11.5 GB available
50% VRAM used

Fit status

Runs well

Decode

42.0 tok/s

TTFT

4610 ms

Safe context

93K

Memory

5.7 GB / 11.5 GB

Memory breakdown

Weights1.8 GB
KV Cache1.2 GB
Runtime0.9 GB
Headroom1.7 GB

See how fast it feels

See how fast it feelsGranite 4.1 3B on MacBook Pro M4 16GB
1st promptCold start — includes initialization
>Write a Python function to sort a list
Here's a Python function that sorts a list using quicksort: def quicksort(arr): if len(arr) <= 1: return arr pivot = arr[len(arr) // 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) # Example usage numbers = [3, 6, 8, 10, 1, 2, 1] print(quicksort(numbers)) # [1, 1, 2, 3, 6, 8, 10] The algorithm picks a pivot, partitions the list into smaller, equal, and larger elements, then recursively sorts each partition and concatenates the results.
2nd promptWarm — model ready, no init overhead
>Now add type hints and a docstring
def quicksort(arr: list[int]) -> list[int]: """Sort a list using the quicksort algorithm. Args: arr: List of integers to sort. Returns: A new sorted list. """ if len(arr) <= 1: return arr pivot = arr[len(arr) // 2] left = [x for x in arr if x < pivot] middle = [x for x in arr if x == pivot] right = [x for x in arr if x > pivot] return quicksort(left) + middle + quicksort(right) Added type hints for the input and return type, plus a Google-style docstring.
Estimated: 42.0 tok/s decode · 4.6s TTFT (warm) · 105 tok/s prefill

What limits this setup

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.

Best improvement path

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatBRuns well42.0 tok/s2514 ms93K
CodingBRuns well42.0 tok/s4610 ms93K
Agentic CodingBRuns well42.0 tok/s6705 ms93K
ReasoningBRuns well42.0 tok/s5448 ms93K
RAGBRuns well42.0 tok/s8381 ms93K

Quantization options

How Granite 4.1 3B (3B params) fits at each quantization level on MacBook Pro M4 16GB (11.5 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
1.2 GB
LowB65
Q3_K_S
3
1.5 GB
LowB65
NVFP4
4
1.7 GB
MediumB65
Q4_K_M
4
1.8 GB
MediumB65
Q5_K_M
5
2.2 GB
HighB66
Q6_K
6
2.5 GB
HighB66
Q8_0
8
3.2 GB
Very HighB67
F16Best for your GPU
16
6.1 GB
MaximumB69

Get started

Copy-paste commands to run Granite 4.1 3B on your machine.

Run

ollama run granite4.1:3b

Frequently asked questions

Can MacBook Pro M4 16GB run Granite 4.1 3B?

Yes, MacBook Pro M4 16GB can run Granite 4.1 3B with a B grade (Runs well). Expected decode speed: 42.0 tok/s.

How much VRAM does Granite 4.1 3B need?

Granite 4.1 3B (3B parameters) requires approximately 5.7 GB of memory with Q4_K_M quantization.

What is the best quantization for Granite 4.1 3B?

The recommended quantization for Granite 4.1 3B is Q4_K_M, which balances quality and memory efficiency.

What speed will Granite 4.1 3B run at on MacBook Pro M4 16GB?

On MacBook Pro M4 16GB, Granite 4.1 3B achieves approximately 42.0 tokens per second decode speed with a time-to-first-token of 4610ms using Q4_K_M quantization.

Can MacBook Pro M4 16GB run Granite 4.1 3B for coding?

For coding workloads, Granite 4.1 3B on MacBook Pro M4 16GB receives a B grade with 42.0 tok/s and 93K context.

What context window can Granite 4.1 3B use on MacBook Pro M4 16GB?

On MacBook Pro M4 16GB, Granite 4.1 3B can safely use up to 93K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

Is unified memory on MacBook Pro M4 16GB as fast as VRAM for Granite 4.1 3B?

Not always. MacBook Pro M4 16GB 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.

See all results for MacBook Pro M4 16GBSee all hardware for Granite 4.1 3B
Embed this result

Paste this snippet into any page to show a live fit card.

<iframe src="https://willitrunai.com/embed/granite-4.1-3b-on-m4-16gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview: