Can Yi Coder 9B run on RX 7900 XT 20GB?

YES — Runs Great

B65Good

Estimated from fit model

Yi Coder 9B needs ~9.9 GB VRAM. RX 7900 XT 20GB has 20.0 GB. With Q4_K_M quantization, expect ~87 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) — 9.9 GB, 95.1 tok/s, Runs well

9.9 GB required20.0 GB available

50% VRAM used

Fit status

Runs well

Decode

95.1 tok/s

TTFT

2036 ms

Safe context

127K

Memory

9.9 GB / 20.0 GB

Memory breakdown

Weights5.5 GB

KV Cache1.5 GB

Runtime0.9 GB

Headroom2.0 GB

See how fast it feels

See how fast it feelsYi Coder 9B on RX 7900 XT 20GB
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: 95.1 tok/s decode · 2.0s TTFT (warm) · 238 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	87.4 tok/s	1208 ms	127K
Coding	B	Runs well	87.4 tok/s	2214 ms	127K
Agentic Coding	B	Runs well	87.4 tok/s	3221 ms	127K
Reasoning	B	Runs well	87.4 tok/s	2617 ms	127K
RAG	B	Runs well	87.4 tok/s	4026 ms	127K

Quantization options

How Yi Coder 9B (9B params) fits at each quantization level on RX 7900 XT 20GB (20.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	3.5 GB	Low	B58
Q3_K_S	3	4.4 GB	Low	B59
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 RX 7900 XT 20GB run Yi Coder 9B?

Yes, RX 7900 XT 20GB can run Yi Coder 9B with a B grade (Runs well). Expected decode speed: 87.4 tok/s.

How much VRAM does Yi Coder 9B need?

Yi Coder 9B (9B parameters) requires approximately 9.9 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 RX 7900 XT 20GB?

On RX 7900 XT 20GB, Yi Coder 9B achieves approximately 87.4 tokens per second decode speed with a time-to-first-token of 2214ms using Q4_K_M quantization.

Can RX 7900 XT 20GB run Yi Coder 9B for coding?

For coding workloads, Yi Coder 9B on RX 7900 XT 20GB receives a B grade with 87.4 tok/s and 127K context.

What context window can Yi Coder 9B use on RX 7900 XT 20GB?

On RX 7900 XT 20GB, Yi Coder 9B can safely use up to 127K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

See all results for RX 7900 XT 20GB See all hardware for Yi Coder 9B

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