Can Gemma 4 31B run on NVIDIA A100 40GB?

YES — With Offload

S90Excellent

Estimated from fit model

Gemma 4 31B needs ~38.6 GB VRAM. NVIDIA A100 40GB has 40.0 GB. With Q4_K_M quantization, expect ~70 tok/s.

Runtime: OllamaCapacity: OffloadBandwidth: HighStack: BasicBottleneck: 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) — 38.6 GB, 73.2 tok/s, Runs with offload

38.6 GB required40.0 GB available

97% VRAM used

Fit status

Runs with offload

Decode

73.2 tok/s

TTFT

2643 ms

Safe context

18K

Memory

38.6 GB / 40.0 GB

Memory breakdown

Weights18.7 GB

KV Cache14.6 GB

Runtime1.2 GB

Headroom4.0 GB

See how fast it feels

See how fast it feelsGemma 4 31B on NVIDIA A100 40GB
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: 73.2 tok/s decode · 2.6s TTFT (warm) · 183 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

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

Buy headroom, not only minimum fit

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

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	S	Runs well	69.7 tok/s	1514 ms	18K
Coding	S	Runs with offload	69.7 tok/s	2776 ms	18K
Agentic Coding	F	Too heavy	28.7 tok/s	9821 ms	18K
Reasoning	S	Runs with offload	69.7 tok/s	3280 ms	18K
RAG	F	Too heavy	28.7 tok/s	12276 ms	18K

Quantization options

How Gemma 4 31B (30.700000762939453B params) fits at each quantization level on NVIDIA A100 40GB (40.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	12.0 GB	Low	A82
Q3_K_S	3	15.0 GB	Low	A83
NVFP4	4	17.2 GB	Medium	A84
Q4_K_M	4	18.7 GB	Medium	A85
Q5_K_M	5	22.1 GB	High	S86
Q6_K	6	25.2 GB	High	S85
Q8_0Best for your GPU	8	32.8 GB	Very High	A85
F16	16	62.9 GB	Maximum	F0

Get started

Copy-paste commands to run Gemma 4 31B on your machine.

Run

ollama run gemma4:31b

Your hardware

More models your NVIDIA A100 40GB can run

Model	Params	Grade	Decode
Qwen 3.6 35B A3B	35B	S	166 tok/s
Qwen 3.5 35B A3B	35B	S	180.5 tok/s
Qwen 3 32B	32B	S	72.8 tok/s

Frequently asked questions

Can NVIDIA A100 40GB run Gemma 4 31B?

Yes, NVIDIA A100 40GB can run Gemma 4 31B with a S grade (Runs with offload). Expected decode speed: 69.7 tok/s.

How much VRAM does Gemma 4 31B need?

Gemma 4 31B (30.700000762939453B parameters) requires approximately 38.6 GB of memory with Q4_K_M quantization.

What is the best quantization for Gemma 4 31B?

The recommended quantization for Gemma 4 31B is Q4_K_M, which balances quality and memory efficiency.

What speed will Gemma 4 31B run at on NVIDIA A100 40GB?

On NVIDIA A100 40GB, Gemma 4 31B achieves approximately 69.7 tokens per second decode speed with a time-to-first-token of 2776ms using Q4_K_M quantization.

Can NVIDIA A100 40GB run Gemma 4 31B for coding?

For coding workloads, Gemma 4 31B on NVIDIA A100 40GB receives a S grade with 69.7 tok/s and 18K context.

What context window can Gemma 4 31B use on NVIDIA A100 40GB?

On NVIDIA A100 40GB, Gemma 4 31B can safely use up to 18K tokens of context. The model's official context limit is 256K, but available memory constrains the safe maximum.

What should I upgrade first if Gemma 4 31B feels slow on NVIDIA A100 40GB?

Buy headroom, not only minimum fit. A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

See all results for NVIDIA A100 40GB See all hardware for Gemma 4 31B

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