Can Gemma 4 31B run on Mac mini M4 32GB?

NO — Won't Fit

F0Won't run

Estimated — low-sample bucket· few comparable runs

Gemma 4 31B needs ~37.7 GB but Mac mini M4 32GB only has 23.0 GB. Try a smaller quantization or lighter model.

Runtime: llama.cppCapacity: No fitBandwidth: Very lowStack: StandardBottleneck: Memory capacity

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) — 37.7 GB, exceeds 23.0 GB available

37.7 GB required23.0 GB available

164% VRAM needed

14.7 GB over capacity — needs offload or smaller quantization

Fit status

Too heavy

Decode

3.5 tok/s

TTFT

55297 ms

Safe context

Memory

37.7 GB / 23.0 GB

Offload

40%

Memory breakdown

Weights18.7 GB

KV Cache14.6 GB

Runtime0.9 GB

Headroom3.5 GB

See how fast it feels

With memory offload — actual speed may be lower

See how fast it feelsGemma 4 31B on Mac mini M4 32GB
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: 3.5 tok/s decode · 55.3s TTFT (warm) · 9 tok/s prefill

What limits this setup

Usable shared or unified memory is the main blocker for this model.

Not enough usable memory

The model needs 37.7 GB, but this setup only exposes 23.0 GB of usable shared or unified memory.

Best improvement path

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.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	F	Too heavy	4.5 tok/s	23559 ms	4K
Coding	F	Too heavy	3.5 tok/s	55297 ms	4K
Agentic Coding	F	Too heavy	3.0 tok/s	94695 ms	4K
Reasoning	F	Too heavy	3.5 tok/s	65351 ms	4K
RAG	F	Too heavy	3.0 tok/s	118368 ms	4K

Quantization options

How Gemma 4 31B (30.700000762939453B params) fits at each quantization level on Mac mini M4 32GB (23.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	12.0 GB	Low	S87
Q3_K_S	3	15.0 GB	Low	S87
NVFP4Best for your GPU	4	17.2 GB	Medium	S86
Q4_K_M	4	18.7 GB	Medium	F0
Q5_K_M	5	22.1 GB	High	F0
Q6_K	6	25.2 GB	High	F0
Q8_0	8	32.8 GB	Very High	F0
F16	16	62.9 GB	Maximum	F0

Opciones de mejora

Hardware que ejecuta bien Gemma 4 31B

Mac mini M4 64GBOpción económica

64 GB Unified (+32)

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.6.6 tok/s decodificación

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.

~$1,099 MSRP

MacBook Pro M4 Pro 64GBMejor relación calidad-precio

64 GB Unified (+32)273 GB/s (+153)

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.16.1 tok/s decodificación

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.

~$1,599 MSRP

Mac Studio M3 Ultra 96GBMejora Apple

96 GB Unified (+64)819 GB/s (+699)

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.23.7 tok/s decodificación

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.

~$3,999 MSRP

Frequently asked questions

Can Mac mini M4 32GB run Gemma 4 31B?

No, Gemma 4 31B requires more memory than Mac mini M4 32GB provides.

How much VRAM does Gemma 4 31B need?

Gemma 4 31B (30.700000762939453B parameters) requires approximately 37.7 GB of memory with Q4_K_M quantization.

What is the best quantization for Gemma 4 31B?

The recommended quantization for Gemma 4 31B is Q4_K_M, which balances quality and memory efficiency.

What speed will Gemma 4 31B run at on Mac mini M4 32GB?

On Mac mini M4 32GB, Gemma 4 31B achieves approximately 3.5 tokens per second decode speed with a time-to-first-token of 55297ms using Q4_K_M quantization.

Can Mac mini M4 32GB run Gemma 4 31B for coding?

For coding workloads, Gemma 4 31B on Mac mini M4 32GB receives a F grade with 3.5 tok/s and 4K context.

What context window can Gemma 4 31B use on Mac mini M4 32GB?

On Mac mini M4 32GB, Gemma 4 31B can safely use up to 4K tokens of context. The model's official context limit is 256K, but available memory constrains the safe maximum.

What should I upgrade first if Gemma 4 31B feels slow on Mac mini M4 32GB?

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.

Is unified memory on Mac mini M4 32GB as fast as VRAM for Gemma 4 31B?

Not always. Mac mini M4 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.

See all results for Mac mini M4 32GB See all hardware for Gemma 4 31B

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