Can Gemma 4 26B A4B run on Radeon Pro W7900 48GB?

YES — Runs Great

S88Excellent

Estimated from fit model

Gemma 4 26B A4B needs ~24.7 GB VRAM. Radeon Pro W7900 48GB has 48.0 GB. With Q4_K_M quantization, expect ~83 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) — 24.7 GB, 82.8 tok/s, Runs well

24.7 GB required48.0 GB available

51% VRAM used

Fit status

Runs well

Decode

82.8 tok/s

TTFT

2339 ms

Safe context

118K

Memory

24.7 GB / 48.0 GB

Memory breakdown

Weights15.4 GB

KV Cache3.7 GB

Runtime0.9 GB

Headroom4.8 GB

See how fast it feels

See how fast it feelsGemma 4 26B A4B on Radeon Pro W7900 48GB
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: 82.8 tok/s decode · 2.3s TTFT (warm) · 207 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	S	Runs well	82.8 tok/s	1276 ms	118K
Coding	S	Runs well	82.8 tok/s	2339 ms	118K
Agentic Coding	S	Runs well	82.8 tok/s	3402 ms	118K
Reasoning	S	Runs well	82.8 tok/s	2764 ms	118K
RAG	S	Runs well	82.8 tok/s	4252 ms	118K

Quantization options

How Gemma 4 26B A4B (25.200000762939453B params) fits at each quantization level on Radeon Pro W7900 48GB (48.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	9.8 GB	Low	A78
Q3_K_S	3	12.3 GB	Low	A79
NVFP4	4	14.1 GB	Medium	A79
Q4_K_M	4	15.4 GB	Medium	A80
Q5_K_M	5	18.1 GB	High	A80
Q6_K	6	20.7 GB	High	A81
Q8_0Best for your GPU	8	27.0 GB	Very High	A83
F16	16	51.7 GB	Maximum	F0

Get started

Copy-paste commands to run Gemma 4 26B A4B on your machine.

Run

ollama run gemma4:26b

Your hardware

More models your Radeon Pro W7900 48GB can run

Model	Params	Grade	Decode
Qwen3-Coder 30B A3B Instruct	30.5B	S	77.1 tok/s
Qwen 3.5 27B	27B	S	33.4 tok/s
Qwen 3.6 27B	27B	S	23.9 tok/s
Qwen 3.6 35B A3B	35B	S	64.8 tok/s
Qwen3-VL 30B A3B Instruct	30B	S	79.7 tok/s

Frequently asked questions

Can Radeon Pro W7900 48GB run Gemma 4 26B A4B?

Yes, Radeon Pro W7900 48GB can run Gemma 4 26B A4B with a S grade (Runs well). Expected decode speed: 82.8 tok/s.

How much VRAM does Gemma 4 26B A4B need?

Gemma 4 26B A4B (25.200000762939453B parameters) requires approximately 24.7 GB of memory with Q4_K_M quantization.

What is the best quantization for Gemma 4 26B A4B?

The recommended quantization for Gemma 4 26B A4B is Q4_K_M, which balances quality and memory efficiency.

What speed will Gemma 4 26B A4B run at on Radeon Pro W7900 48GB?

On Radeon Pro W7900 48GB, Gemma 4 26B A4B achieves approximately 82.8 tokens per second decode speed with a time-to-first-token of 2339ms using Q4_K_M quantization.

Can Radeon Pro W7900 48GB run Gemma 4 26B A4B for coding?

For coding workloads, Gemma 4 26B A4B on Radeon Pro W7900 48GB receives a S grade with 82.8 tok/s and 118K context.

What context window can Gemma 4 26B A4B use on Radeon Pro W7900 48GB?

On Radeon Pro W7900 48GB, Gemma 4 26B A4B can safely use up to 118K tokens of context. The model's official context limit is 256K, but available memory constrains the safe maximum.

See all results for Radeon Pro W7900 48GB See all hardware for Gemma 4 26B A4B

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