Is unified memory on MacBook Pro M4 Pro 48GB as fast as VRAM for Mistral Small 3.1 24B?

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.

Can Mistral Small 3.1 24B run on MacBook Pro M4 Pro 48GB?

YES — Runs Great

A82Great

Estimated — low-sample bucket· few comparable runs

Mistral Small 3.1 24B needs ~23.2 GB VRAM. MacBook Pro M4 Pro 48GB has 34.6 GB. With Q4_K_M quantization, expect ~14 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: LowStack: StandardBottleneck: Balanced

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) — 23.2 GB, 23.2 tok/s, Runs well

23.2 GB required34.6 GB available

67% VRAM used

Fit status

Runs well

Decode

23.2 tok/s

TTFT

8362 ms

Safe context

91K

Memory

23.2 GB / 34.6 GB

Memory breakdown

Weights14.6 GB

KV Cache2.4 GB

Runtime0.9 GB

Headroom5.2 GB

See how fast it feels

See how fast it feelsMistral Small 3.1 24B on MacBook Pro M4 Pro 48GB
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: 23.2 tok/s decode · 8.4s TTFT (warm) · 58 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

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Runs well	23.2 tok/s	4561 ms	91K
Coding	A	Runs well	14.4 tok/s	13483 ms	91K
Agentic Coding	A	Runs well	23.2 tok/s	12162 ms	91K
Reasoning	A	Runs well	23.2 tok/s	9882 ms	91K
RAG	A	Runs well	23.2 tok/s	15203 ms	91K

Quantization options

How Mistral Small 3.1 24B (24B params) fits at each quantization level on MacBook Pro M4 Pro 48GB (34.6 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	9.4 GB	Low	A76
Q3_K_S	3	11.8 GB	Low	A77
NVFP4	4

Get started

Copy-paste commands to run Mistral Small 3.1 24B on your machine.

Run

ollama run mistral-small:24b

Your hardware

More models your MacBook Pro M4 Pro 48GB can run

Model	Params	Grade	Decode	Capabilities
Qwen3-Coder 30B A3B Instruct	30.5B	S	31.8 tok/s
Qwen 3.5 27B	27B	S	22.7 tok/s

Frequently asked questions

Can MacBook Pro M4 Pro 48GB run Mistral Small 3.1 24B?

Yes, MacBook Pro M4 Pro 48GB can run Mistral Small 3.1 24B with a A grade (Runs well). Expected decode speed: 14.4 tok/s.

How much VRAM does Mistral Small 3.1 24B need?

Mistral Small 3.1 24B (24B parameters) requires approximately 23.2 GB of memory with Q4_K_M quantization.

What is the best quantization for Mistral Small 3.1 24B?

The recommended quantization for Mistral Small 3.1 24B is Q4_K_M, which balances quality and memory efficiency.

What speed will Mistral Small 3.1 24B run at on MacBook Pro M4 Pro 48GB?

On MacBook Pro M4 Pro 48GB, Mistral Small 3.1 24B achieves approximately 14.4 tokens per second decode speed with a time-to-first-token of 13483ms using Q4_K_M quantization.

Can MacBook Pro M4 Pro 48GB run Mistral Small 3.1 24B for coding?

For coding workloads, Mistral Small 3.1 24B on MacBook Pro M4 Pro 48GB receives a A grade with 14.4 tok/s and 91K context.

What context window can Mistral Small 3.1 24B use on MacBook Pro M4 Pro 48GB?

On MacBook Pro M4 Pro 48GB, Mistral Small 3.1 24B can safely use up to 91K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for MacBook Pro M4 Pro 48GB See all hardware for Mistral Small 3.1 24B

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