Can StarCoder 7B run on RX 6700 XT 12GB?

BARELY — Tight on Memory

B63Good

Estimated from fit model

StarCoder 7B needs ~13.7 GB VRAM. RX 6700 XT 12GB has 12.0 GB. With Q4_K_M quantization, expect ~27 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: LowStack: StandardBottleneck: Host offload

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) — 13.7 GB, 26.6 tok/s, Very compromised (needs ~0.5 GB host RAM)

13.7 GB required12.0 GB available

114% VRAM needed

1.7 GB over capacity — needs offload or smaller quantization

Fit status

Very compromised (needs ~0.5 GB host RAM)

Decode

26.6 tok/s

TTFT

7289 ms

Safe context

Memory

13.7 GB / 12.0 GB

Offload

10%

Memory breakdown

Weights4.3 GB

KV Cache7.3 GB

Runtime0.9 GB

Headroom1.2 GB

See how fast it feels

See how fast it feelsStarCoder 7B on RX 6700 XT 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: 26.6 tok/s decode · 7.3s TTFT (warm) · 66 tok/s prefill

What limits this setup

It fits through host-memory offload, and offload is the main reason performance drops.

CPU or host-memory offload is active

About 10% of the working set spills out of accelerator memory, which usually hurts latency and sustained decode throughput.

Very little memory headroom

You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.

Best improvement path

Remove offload with more accelerator memory

Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

Buy headroom, not only minimum fit

A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

Increase host RAM if you keep offloading

This setup may need roughly 0.5 GB of extra host RAM just for the offloaded portion, before OS and other tools.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Tight fit	46.8 tok/s	2258 ms	8K
Coding	B	Very compromised (needs ~0.5 GB host RAM)	26.6 tok/s	7289 ms	8K
Agentic Coding	F	Too heavy	10.8 tok/s	26125 ms	8K
Reasoning	B	Very compromised (needs ~0.5 GB host RAM)	26.6 tok/s	8614 ms	8K
RAG	F	Too heavy	10.8 tok/s	32657 ms	8K

Quantization options

How StarCoder 7B (7B params) fits at each quantization level on RX 6700 XT 12GB (12.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.7 GB	Low	A72
Q3_K_S	3	3.4 GB	Low	A73
NVFP4	4	3.9 GB	Medium	A74
Q4_K_M	4	4.3 GB	Medium	A74
Q5_K_M	5	5.0 GB	High	A75
Q6_K	6	5.7 GB	High	A76
Q8_0Best for your GPU	8	7.5 GB	Very High	A75
F16	16	14.3 GB	Maximum	F0

Get started

Copy-paste commands to run StarCoder 7B on your machine.

Run

lms load starcoder-7b && lms server start

Opciones de mejora

Hardware que ejecuta bien StarCoder 7B

RX 7600 XT 16GBOpción económica

16 GB VRAM (+4)

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.39.1 tok/s decodificación

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

Sube la velocidad estimada de decodificación alrededor de un 47%.

~$329 MSRP

RX 9060 XT 16GBMejor relación calidad-precio

16 GB VRAM (+4)

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.47.2 tok/s decodificación

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

Sube la velocidad estimada de decodificación alrededor de un 77%.

~$349 MSRP

RX 9070 16GBMejora AMD

16 GB VRAM (+4)640 GB/s (+256)

Elimina el offload a memoria del sistema, que suele ser la mayor mejora individual en latencia y throughput.92.9 tok/s decodificación

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

Sube la velocidad estimada de decodificación alrededor de un 249%.

~$479 MSRP

Frequently asked questions

Can RX 6700 XT 12GB run StarCoder 7B?

Yes, RX 6700 XT 12GB can run StarCoder 7B with a B grade (Very compromised (needs ~0.5 GB host RAM)). Expected decode speed: 26.6 tok/s.

How much VRAM does StarCoder 7B need?

StarCoder 7B (7B parameters) requires approximately 13.7 GB of memory with Q4_K_M quantization.

What is the best quantization for StarCoder 7B?

The recommended quantization for StarCoder 7B is Q4_K_M, which balances quality and memory efficiency.

What speed will StarCoder 7B run at on RX 6700 XT 12GB?

On RX 6700 XT 12GB, StarCoder 7B achieves approximately 26.6 tokens per second decode speed with a time-to-first-token of 7289ms using Q4_K_M quantization.

Can RX 6700 XT 12GB run StarCoder 7B for coding?

For coding workloads, StarCoder 7B on RX 6700 XT 12GB receives a B grade with 26.6 tok/s and 8K context.

What context window can StarCoder 7B use on RX 6700 XT 12GB?

On RX 6700 XT 12GB, StarCoder 7B can safely use up to 8K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.

What should I upgrade first if StarCoder 7B feels slow on RX 6700 XT 12GB?

Remove offload with more accelerator memory. Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

See all results for RX 6700 XT 12GB See all hardware for StarCoder 7B

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