Can Gemma 4 31B run on NVIDIA H800 80GB?

YES — Runs Great

S90Excellent

Estimated from fit model

Gemma 4 31B needs ~42.6 GB VRAM. NVIDIA H800 80GB has 80.0 GB. With Q4_K_M quantization, expect ~136 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: 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) — 42.6 GB, 136.2 tok/s, Runs well

42.6 GB required80.0 GB available

53% VRAM used

Fit status

Runs well

Decode

136.2 tok/s

TTFT

1421 ms

Safe context

57K

Memory

42.6 GB / 80.0 GB

Memory breakdown

Weights18.7 GB

KV Cache14.6 GB

Runtime1.2 GB

Headroom8.0 GB

See how fast it feels

See how fast it feelsGemma 4 31B on NVIDIA H800 80GB
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: 136.2 tok/s decode · 1.4s TTFT (warm) · 341 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	136.2 tok/s	775 ms	57K
Coding	S	Runs well	136.2 tok/s	1421 ms	57K
Agentic Coding	S	Runs well	136.2 tok/s	2067 ms	57K
Reasoning	S	Runs well	136.2 tok/s	1679 ms	57K
RAG	S	Runs well	136.2 tok/s	2584 ms	57K

Quantization options

How Gemma 4 31B (30.700000762939453B params) fits at each quantization level on NVIDIA H800 80GB (80.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	12.0 GB	Low	A77
Q3_K_S	3	15.0 GB	Low	A78
NVFP4	4	17.2 GB	Medium	A78
Q4_K_M	4	18.7 GB	Medium	A78
Q5_K_M	5	22.1 GB	High	A79
Q6_K	6	25.2 GB	High	A80
Q8_0	8	32.8 GB	Very High	A81
F16Best for your GPU	16	62.9 GB	Maximum	A85

Get started

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

Run

ollama run gemma4:31b

Your hardware

More models your NVIDIA H800 80GB can run

Model	Params	Grade	Decode
Devstral 2 123B Instruct	123B	A	24.9 tok/s
Qwen 3.5 122B A10B	122B	S	73.9 tok/s
Qwen 3.6 35B A3B	35B	S	308.8 tok/s
Qwen 3.5 35B A3B	35B	S	335.8 tok/s
Qwen 3 32B	32B	S	135.4 tok/s

Frequently asked questions

Can NVIDIA H800 80GB run Gemma 4 31B?

Yes, NVIDIA H800 80GB can run Gemma 4 31B with a S grade (Runs well). Expected decode speed: 136.2 tok/s.

How much VRAM does Gemma 4 31B need?

Gemma 4 31B (30.700000762939453B parameters) requires approximately 42.6 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 H800 80GB?

On NVIDIA H800 80GB, Gemma 4 31B achieves approximately 136.2 tokens per second decode speed with a time-to-first-token of 1421ms using Q4_K_M quantization.

Can NVIDIA H800 80GB run Gemma 4 31B for coding?

For coding workloads, Gemma 4 31B on NVIDIA H800 80GB receives a S grade with 136.2 tok/s and 57K context.

What context window can Gemma 4 31B use on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Gemma 4 31B can safely use up to 57K tokens of context. The model's official context limit is 256K, but available memory constrains the safe maximum.

See all results for NVIDIA H800 80GB See all hardware for Gemma 4 31B

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Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Runs well

136.2 tok/s

775 ms

57K

Coding

Runs well

136.2 tok/s

1421 ms

57K

Agentic Coding

Runs well

136.2 tok/s

2067 ms

57K

Reasoning

Runs well

136.2 tok/s

1679 ms

57K

RAG

Runs well

136.2 tok/s

2584 ms

57K

Quantization options

How Gemma 4 31B (30.700000762939453B params) fits at each quantization level on NVIDIA H800 80GB (80.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	12.0 GB	Low	A77
Q3_K_S	3	15.0 GB	Low	A78
NVFP4	4	17.2 GB	Medium	A78
Q4_K_M	4	18.7 GB	Medium	A78
Q5_K_M	5	22.1 GB	High	A79
Q6_K	6	25.2 GB	High	A80
Q8_0	8	32.8 GB	Very High	A81
F16Best for your GPU	16	62.9 GB	Maximum	A85

Model

Params

Grade

Decode

Capabilities

Devstral 2 123B Instruct

123B

24.9 tok/s

Qwen 3.5 122B A10B

122B

73.9 tok/s

Qwen 3.6 35B A3B

35B

308.8 tok/s

Qwen 3.5 35B A3B

35B

335.8 tok/s

Qwen 3 32B

32B

135.4 tok/s

Frequently asked questions

Can NVIDIA H800 80GB run Gemma 4 31B?

Yes, NVIDIA H800 80GB can run Gemma 4 31B with a S grade (Runs well). Expected decode speed: 136.2 tok/s.

How much VRAM does Gemma 4 31B need?

Gemma 4 31B (30.700000762939453B parameters) requires approximately 42.6 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 H800 80GB?

On NVIDIA H800 80GB, Gemma 4 31B achieves approximately 136.2 tokens per second decode speed with a time-to-first-token of 1421ms using Q4_K_M quantization.

Can NVIDIA H800 80GB run Gemma 4 31B for coding?

For coding workloads, Gemma 4 31B on NVIDIA H800 80GB receives a S grade with 136.2 tok/s and 57K context.

What context window can Gemma 4 31B use on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Gemma 4 31B can safely use up to 57K tokens of context. The model's official context limit is 256K, but available memory constrains the safe maximum.