Can Qwen3-Coder 30B A3B Instruct run on RX 6650 XT 8GB?

NO — Won't Fit

F0Won't run

Estimated from fit model

Qwen3-Coder 30B A3B Instruct needs ~21.8 GB but RX 6650 XT 8GB only has 8.0 GB. Try a smaller quantization or lighter model.

Runtime: llama.cppCapacity: No fitBandwidth: LowStack: StandardBottleneck: Memory capacity

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) — 21.8 GB, exceeds 8.0 GB available

21.8 GB required8.0 GB available

273% VRAM needed

13.8 GB over capacity — needs offload or smaller quantization

Fit status

Too heavy

Decode

3.2 tok/s

TTFT

59772 ms

Safe context

Memory

21.8 GB / 8.0 GB

Offload

60%

Memory breakdown

Weights18.6 GB

KV Cache1.5 GB

Runtime0.9 GB

Headroom0.8 GB

See how fast it feels

With memory offload — actual speed may be lower

See how fast it feelsQwen3-Coder 30B A3B Instruct on RX 6650 XT 8GB
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: 3.2 tok/s decode · 59.8s TTFT (warm) · 8 tok/s prefill

What limits this setup

Usable VRAM is the main blocker for this model.

Not enough usable memory

The model needs 21.8 GB, but this setup only exposes 8.0 GB of usable VRAM.

Best improvement path

Add more VRAM headroom

The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	F	Too heavy	3.2 tok/s	32603 ms	4K
Coding	F	Too heavy	3.2 tok/s	59772 ms	4K
Agentic Coding	F	Too heavy	3.2 tok/s	86942 ms	4K
Reasoning	F	Too heavy	3.2 tok/s	70640 ms	4K
RAG	F	Too heavy	3.2 tok/s	108677 ms	4K

Quantization options

How Qwen3-Coder 30B A3B Instruct (30.5B params) fits at each quantization level on RX 6650 XT 8GB (8.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	11.9 GB	Low	F0
Q3_K_S	3	14.9 GB	Low	F0
NVFP4	4	17.1 GB	Medium	F0
Q4_K_M	4	18.6 GB	Medium	F0
Q5_K_M	5	22.0 GB	High	F0
Q6_K	6	25.0 GB	High	F0
Q8_0	8	32.6 GB	Very High	F0
F16	16	62.5 GB	Maximum	F0

Opciones de mejora

Hardware que ejecuta bien Qwen3-Coder 30B A3B Instruct

RX 7900 XT 20GBMejor relación calidad-precio

20 GB VRAM (+12)800 GB/s (+520)

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.40.7 tok/s decodificación

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.

Sube la velocidad estimada de decodificación alrededor de un 1172%.

~$899 MSRP

RX 7900 XTX 24GBOpción económica

24 GB VRAM (+16)960 GB/s (+680)

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.104.5 tok/s decodificación

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.

~$999 MSRP

Radeon AI PRO R9700 32GBMejora AMD

32 GB VRAM (+24)640 GB/s (+360)

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.57.1 tok/s decodificación

Hace que el modelo quepa en el acelerador en lugar de seguir fuera de alcance.

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.

~$1,899 MSRP

Frequently asked questions

Can RX 6650 XT 8GB run Qwen3-Coder 30B A3B Instruct?

No, Qwen3-Coder 30B A3B Instruct requires more memory than RX 6650 XT 8GB provides.

How much VRAM does Qwen3-Coder 30B A3B Instruct need?

Qwen3-Coder 30B A3B Instruct (30.5B parameters) requires approximately 21.8 GB of memory with Q4_K_M quantization.

What is the best quantization for Qwen3-Coder 30B A3B Instruct?

The recommended quantization for Qwen3-Coder 30B A3B Instruct is Q4_K_M, which balances quality and memory efficiency.

What speed will Qwen3-Coder 30B A3B Instruct run at on RX 6650 XT 8GB?

On RX 6650 XT 8GB, Qwen3-Coder 30B A3B Instruct achieves approximately 3.2 tokens per second decode speed with a time-to-first-token of 59772ms using Q4_K_M quantization.

Can RX 6650 XT 8GB run Qwen3-Coder 30B A3B Instruct for coding?

For coding workloads, Qwen3-Coder 30B A3B Instruct on RX 6650 XT 8GB receives a F grade with 3.2 tok/s and 4K context.

What context window can Qwen3-Coder 30B A3B Instruct use on RX 6650 XT 8GB?

On RX 6650 XT 8GB, Qwen3-Coder 30B A3B Instruct can safely use up to 4K tokens of context. The model's official context limit is 256K, but available memory constrains the safe maximum.

What should I upgrade first if Qwen3-Coder 30B A3B Instruct feels slow on RX 6650 XT 8GB?

Add more VRAM headroom. The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.

See all results for RX 6650 XT 8GB See all hardware for Qwen3-Coder 30B A3B Instruct

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