Can starcoder2 15b i1 run on RX 7900 XT 20GB?

YES — Runs Great

C55Usable

Estimated from fit model

starcoder2 15b i1 needs ~13.8 GB VRAM. RX 7900 XT 20GB has 20.0 GB. With Q4_K_M quantization, expect ~53 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) — 13.8 GB, 52.5 tok/s, Runs well

13.8 GB required20.0 GB available

69% VRAM used

Fit status

Runs well

Decode

52.5 tok/s

TTFT

3691 ms

Safe context

72K

Memory

13.8 GB / 20.0 GB

Memory breakdown

Weights9.2 GB

KV Cache1.8 GB

Runtime0.9 GB

Headroom2.0 GB

See how fast it feels

See how fast it feelsstarcoder2 15b i1 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: 52.5 tok/s decode · 3.7s TTFT (warm) · 131 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	52.5 tok/s	2013 ms	72K
Coding	C	Runs well	52.5 tok/s	3691 ms	72K
Agentic Coding	C	Runs well	52.5 tok/s	5368 ms	72K
Reasoning	C	Runs well	52.5 tok/s	4362 ms	72K
RAG	C	Runs well	52.5 tok/s	6710 ms	72K

Quantization options

How starcoder2 15b i1 (15B params) fits at each quantization level on RX 7900 XT 20GB (20.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	5.9 GB	Low	C47
Q3_K_S	3	7.4 GB	Low	C48
NVFP4	4

Get started

Copy-paste commands to run starcoder2 15b i1 on your machine.

Run

lms load hf-mradermacher--starcoder2-15b-i1-gguf && lms server start

Frequently asked questions

Can RX 7900 XT 20GB run starcoder2 15b i1?

Yes, RX 7900 XT 20GB can run starcoder2 15b i1 with a C grade (Runs well). Expected decode speed: 52.5 tok/s.

How much VRAM does starcoder2 15b i1 need?

starcoder2 15b i1 (15B parameters) requires approximately 13.8 GB of memory with Q4_K_M quantization.

What is the best quantization for starcoder2 15b i1?

The recommended quantization for starcoder2 15b i1 is Q4_K_M, which balances quality and memory efficiency.

What speed will starcoder2 15b i1 run at on RX 7900 XT 20GB?

On RX 7900 XT 20GB, starcoder2 15b i1 achieves approximately 52.5 tokens per second decode speed with a time-to-first-token of 3691ms using Q4_K_M quantization.

Can RX 7900 XT 20GB run starcoder2 15b i1 for coding?

For coding workloads, starcoder2 15b i1 on RX 7900 XT 20GB receives a C grade with 52.5 tok/s and 72K context.

What context window can starcoder2 15b i1 use on RX 7900 XT 20GB?

On RX 7900 XT 20GB, starcoder2 15b i1 can safely use up to 72K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for RX 7900 XT 20GB See all hardware for starcoder2 15b i1

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