Can Mamba Codestral 7B v0.1 run on RTX 4070 12GB?

YES — Runs Great

C55Usable

Estimated from fit model

Mamba Codestral 7B v0.1 needs ~7.5 GB VRAM. RTX 4070 12GB has 12.0 GB. With Q4_K_M quantization, expect ~89 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: MediumStack: BasicBottleneck: 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) — 7.5 GB, 88.5 tok/s, Runs well

7.5 GB required12.0 GB available

63% VRAM used

Fit status

Runs well

Decode

88.5 tok/s

TTFT

2187 ms

Safe context

104K

Memory

7.5 GB / 12.0 GB

Memory breakdown

Weights4.3 GB

KV Cache0.8 GB

Runtime1.2 GB

Headroom1.2 GB

See how fast it feels

See how fast it feelsMamba Codestral 7B v0.1 on RTX 4070 12GB
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: 88.5 tok/s decode · 2.2s TTFT (warm) · 221 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Runs well	88.5 tok/s	1193 ms	104K
Coding	C	Runs well	88.5 tok/s	2187 ms	104K
Agentic Coding	B	Runs well	88.5 tok/s	3181 ms	104K
Reasoning	C	Runs well	88.5 tok/s	2585 ms	104K
RAG	B	Runs well	88.5 tok/s	3976 ms	104K

Quantization options

How Mamba Codestral 7B v0.1 (7B params) fits at each quantization level on RTX 4070 12GB (12.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.7 GB	Low	C49
Q3_K_S	3	3.4 GB	Low	C49
NVFP4	4

Get started

Copy-paste commands to run Mamba Codestral 7B v0.1 on your machine.

Run

lms load hf-gabriellarson--mamba-codestral-7b-v0-1-gguf && lms server start

Frequently asked questions

Can RTX 4070 12GB run Mamba Codestral 7B v0.1?

Yes, RTX 4070 12GB can run Mamba Codestral 7B v0.1 with a C grade (Runs well). Expected decode speed: 88.5 tok/s.

How much VRAM does Mamba Codestral 7B v0.1 need?

Mamba Codestral 7B v0.1 (7B parameters) requires approximately 7.5 GB of memory with Q4_K_M quantization.

What is the best quantization for Mamba Codestral 7B v0.1?

The recommended quantization for Mamba Codestral 7B v0.1 is Q4_K_M, which balances quality and memory efficiency.

What speed will Mamba Codestral 7B v0.1 run at on RTX 4070 12GB?

On RTX 4070 12GB, Mamba Codestral 7B v0.1 achieves approximately 88.5 tokens per second decode speed with a time-to-first-token of 2187ms using Q4_K_M quantization.

Can RTX 4070 12GB run Mamba Codestral 7B v0.1 for coding?

For coding workloads, Mamba Codestral 7B v0.1 on RTX 4070 12GB receives a C grade with 88.5 tok/s and 104K context.

What context window can Mamba Codestral 7B v0.1 use on RTX 4070 12GB?

On RTX 4070 12GB, Mamba Codestral 7B v0.1 can safely use up to 104K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for RTX 4070 12GB See all hardware for Mamba Codestral 7B v0.1

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