Will It Run AI

Can StarCoder 15B run on MacBook Pro M2 Pro 16GB?

NO — Won't Fit

F0Won't run
Estimated from fit model

StarCoder 15B needs ~28.4 GB but MacBook Pro M2 Pro 16GB only has 11.5 GB. Try a smaller quantization or lighter model.

Runtime: OllamaCapacity: No fitBandwidth: Very lowStack: BasicBottleneck: Memory capacity
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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

Q5_K_M (High quality) 28.4 GB, exceeds 11.5 GB available
28.4 GB required11.5 GB available
247% VRAM needed

16.9 GB over capacity — needs offload or smaller quantization

Fit status

Too heavy

Decode

6.0 tok/s

TTFT

32538 ms

Safe context

4K

Memory

28.4 GB / 11.5 GB

Offload

60%

Memory breakdown

Weights10.8 GB
KV Cache14.6 GB
Runtime1.2 GB
Headroom1.7 GB

See how fast it feels

With memory offload — actual speed may be lower
See how fast it feelsStarCoder 15B on MacBook Pro M2 Pro 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: 6.0 tok/s decode · 32.5s TTFT (warm) · 15 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 28.4 GB, but this setup only exposes 11.5 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

WorkloadGradeFitDecodeTTFTContext
ChatFToo heavy6.2 tok/s17012 ms4K
CodingFToo heavy6.0 tok/s32538 ms4K
Agentic CodingFToo heavy6.0 tok/s47328 ms4K
ReasoningFToo heavy6.0 tok/s38454 ms4K
RAGFToo heavy6.0 tok/s59160 ms4K

Quantization options

How StarCoder 15B (15B params) fits at each quantization level on MacBook Pro M2 Pro 16GB (11.5 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
5.9 GB
LowA77
Q3_K_S
3
7.4 GB
LowA77
NVFP4Best for your GPU
4
8.4 GB
MediumA77
Q4_K_M
4
9.2 GB
MediumF0
Q5_K_M
5
10.8 GB
HighF0
Q6_K
6
12.3 GB
HighF0
Q8_0
8
16.1 GB
Very HighF0
F16
16
30.7 GB
MaximumF0

Opções de upgrade

Hardware que roda bem StarCoder 15B

Frequently asked questions

Can MacBook Pro M2 Pro 16GB run StarCoder 15B?

No, StarCoder 15B requires more memory than MacBook Pro M2 Pro 16GB provides.

How much VRAM does StarCoder 15B need?

StarCoder 15B (15B parameters) requires approximately 28.4 GB of memory with Q5_K_M quantization.

What is the best quantization for StarCoder 15B?

The recommended quantization for StarCoder 15B is Q5_K_M, which balances quality and memory efficiency.

What speed will StarCoder 15B run at on MacBook Pro M2 Pro 16GB?

On MacBook Pro M2 Pro 16GB, StarCoder 15B achieves approximately 6.0 tokens per second decode speed with a time-to-first-token of 32538ms using Q5_K_M quantization.

Can MacBook Pro M2 Pro 16GB run StarCoder 15B for coding?

For coding workloads, StarCoder 15B on MacBook Pro M2 Pro 16GB receives a F grade with 6.0 tok/s and 4K context.

What context window can StarCoder 15B use on MacBook Pro M2 Pro 16GB?

On MacBook Pro M2 Pro 16GB, StarCoder 15B can safely use up to 4K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.

What should I upgrade first if StarCoder 15B feels slow on MacBook Pro M2 Pro 16GB?

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 MacBook Pro M2 Pro 16GB as fast as VRAM for StarCoder 15B?

Not always. MacBook Pro M2 Pro 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 M2 Pro 16GBSee all hardware for StarCoder 15B
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