Can Yi Coder 9B run on RTX 4070 12GB?

YES — Runs Great

B68Good

Estimated from fit model

Yi Coder 9B needs ~9.4 GB VRAM. RTX 4070 12GB has 12.0 GB. With Q4_K_M quantization, expect ~69 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) — 9.4 GB, 74.9 tok/s, Runs well

9.4 GB required12.0 GB available

78% VRAM used

Fit status

Runs well

Decode

74.9 tok/s

TTFT

2586 ms

Safe context

45K

Memory

9.4 GB / 12.0 GB

Memory breakdown

Weights5.5 GB

KV Cache1.5 GB

Runtime1.2 GB

Headroom1.2 GB

See how fast it feels

See how fast it feelsYi Coder 9B 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: 74.9 tok/s decode · 2.6s TTFT (warm) · 187 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	B	Runs well	68.9 tok/s	1534 ms	45K
Coding	B	Runs well	68.9 tok/s	2812 ms	45K
Agentic Coding	B	Tight fit	68.9 tok/s	4090 ms	45K
Reasoning	B	Runs well	68.9 tok/s	3323 ms	45K
RAG	B	Tight fit	68.9 tok/s	5112 ms	45K

Quantization options

How Yi Coder 9B (9B params) fits at each quantization level on RTX 4070 12GB (12.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.5 GB	Low	B62
Q3_K_S	3	4.4 GB	Low	B63
NVFP4	4

Get started

Copy-paste commands to run Yi Coder 9B on your machine.

Run

lms load Yi-Coder-9B-Chat && lms server start

Frequently asked questions

Can RTX 4070 12GB run Yi Coder 9B?

Yes, RTX 4070 12GB can run Yi Coder 9B with a B grade (Runs well). Expected decode speed: 68.9 tok/s.

How much VRAM does Yi Coder 9B need?

Yi Coder 9B (9B parameters) requires approximately 9.4 GB of memory with Q4_K_M quantization.

What is the best quantization for Yi Coder 9B?

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

What speed will Yi Coder 9B run at on RTX 4070 12GB?

On RTX 4070 12GB, Yi Coder 9B achieves approximately 68.9 tokens per second decode speed with a time-to-first-token of 2812ms using Q4_K_M quantization.

Can RTX 4070 12GB run Yi Coder 9B for coding?

For coding workloads, Yi Coder 9B on RTX 4070 12GB receives a B grade with 68.9 tok/s and 45K context.

What context window can Yi Coder 9B use on RTX 4070 12GB?

On RTX 4070 12GB, Yi Coder 9B can safely use up to 45K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for RTX 4070 12GB See all hardware for Yi Coder 9B

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