Can CodeGeeX 4 9B run on Mac Studio M1 Ultra 64GB?

Q: Is unified memory on Mac Studio M1 Ultra 64GB as fast as VRAM for CodeGeeX 4 9B?

Not always. Mac Studio M1 Ultra 64GB 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.

YES — Runs Great

A76Great

Estimated from fit model

CodeGeeX 4 9B needs ~13.9 GB VRAM. Mac Studio M1 Ultra 64GB has 46.1 GB. With Q4_K_M quantization, expect ~88 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: 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) — 13.9 GB, 87.7 tok/s, Runs well

13.9 GB required46.1 GB available

30% VRAM used

Fit status

Runs well

Decode

87.7 tok/s

TTFT

2209 ms

Safe context

131K

Memory

13.9 GB / 46.1 GB

Memory breakdown

Weights5.5 GB

KV Cache0.6 GB

Runtime0.9 GB

Headroom6.9 GB

See how fast it feels

See how fast it feelsCodeGeeX 4 9B on Mac Studio M1 Ultra 64GB
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: 87.7 tok/s decode · 2.2s TTFT (warm) · 219 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	87.7 tok/s	1205 ms	131K
Coding	A	Runs well	87.7 tok/s	2209 ms	131K
Agentic Coding	A	Runs well	87.7 tok/s	3212 ms	131K
Reasoning	A	Runs well	87.7 tok/s	2610 ms	131K
RAG	A	Runs well	87.7 tok/s	4016 ms	131K

Quantization options

How CodeGeeX 4 9B (9B params) fits at each quantization level on Mac Studio M1 Ultra 64GB (46.1 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.5 GB	Low	B69
Q3_K_S	3	4.4 GB	Low	B70
NVFP4	4

Get started

Copy-paste commands to run CodeGeeX 4 9B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "THUDM/codegeex4-all-9b" \
  --hf-file "codegeex4-all-9b-Q4_K_M.gguf" \
  -c 4096 -ngl 99

Your hardware

More models your Mac Studio M1 Ultra 64GB can run

Model	Params	Grade	Decode	Capabilities
Qwen3-Coder 30B A3B Instruct	30.5B	S	66.5 tok/s
Qwen 3.5 27B	27B	S	28.9 tok/s

Frequently asked questions

Can Mac Studio M1 Ultra 64GB run CodeGeeX 4 9B?

Yes, Mac Studio M1 Ultra 64GB can run CodeGeeX 4 9B with a A grade (Runs well). Expected decode speed: 87.7 tok/s.

How much VRAM does CodeGeeX 4 9B need?

CodeGeeX 4 9B (9B parameters) requires approximately 13.9 GB of memory with Q4_K_M quantization.

What is the best quantization for CodeGeeX 4 9B?

The recommended quantization for CodeGeeX 4 9B is Q4_K_M, which balances quality and memory efficiency.

What speed will CodeGeeX 4 9B run at on Mac Studio M1 Ultra 64GB?

On Mac Studio M1 Ultra 64GB, CodeGeeX 4 9B achieves approximately 87.7 tokens per second decode speed with a time-to-first-token of 2209ms using Q4_K_M quantization.

Can Mac Studio M1 Ultra 64GB run CodeGeeX 4 9B for coding?

For coding workloads, CodeGeeX 4 9B on Mac Studio M1 Ultra 64GB receives a A grade with 87.7 tok/s and 131K context.

What context window can CodeGeeX 4 9B use on Mac Studio M1 Ultra 64GB?

On Mac Studio M1 Ultra 64GB, CodeGeeX 4 9B can safely use up to 131K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

Is unified memory on Mac Studio M1 Ultra 64GB as fast as VRAM for CodeGeeX 4 9B?

See all results for Mac Studio M1 Ultra 64GB See all hardware for CodeGeeX 4 9B

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