Can Nemotron Cascade 2 30B A3B run on H100 NVL 188GB?

YES — Runs Great

A84Great

Estimated from fit model

Nemotron Cascade 2 30B A3B needs ~41.2 GB VRAM. H100 NVL 188GB has 188.0 GB. With Q4_K_M quantization, expect ~977 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) — 41.2 GB, 976.7 tok/s, Runs well

41.2 GB required188.0 GB available

22% VRAM used

Fit status

Runs well

Decode

976.7 tok/s

TTFT

350 ms

Safe context

262K

Memory

41.2 GB / 188.0 GB

Memory breakdown

Weights18.3 GB

KV Cache2.9 GB

Runtime1.2 GB

Headroom18.8 GB

See how fast it feels

See how fast it feelsNemotron Cascade 2 30B A3B on H100 NVL 188GB
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: 976.7 tok/s decode · 350ms TTFT (warm) · 2442 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	A	Runs well	976.7 tok/s	350 ms	262K
Coding	A	Runs well	976.7 tok/s	350 ms	262K
Agentic Coding	A	Runs well	976.7 tok/s	350 ms	262K
Reasoning	A	Runs well	976.7 tok/s	350 ms	262K
RAG	A	Runs well	976.7 tok/s	360 ms	262K

Quantization options

How Nemotron Cascade 2 30B A3B (30B params) fits at each quantization level on H100 NVL 188GB (188.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	11.7 GB	Low	A75
Q3_K_S	3	14.7 GB	Low	A75
NVFP4	4	16.8 GB	Medium	A75
Q4_K_M	4	18.3 GB	Medium	A75
Q5_K_M	5	21.6 GB	High	A75
Q6_K	6	24.6 GB	High	A76
Q8_0	8	32.1 GB	Very High	A77
F16Best for your GPU	16	61.5 GB	Maximum	A80

Get started

Copy-paste commands to run Nemotron Cascade 2 30B A3B on your machine.

Run

ollama run nemotron-cascade-2

Your hardware

More models your H100 NVL 188GB can run

Model	Params	Grade	Decode
Devstral 2 123B Instruct	123B	S	91.6 tok/s
Qwen3-Coder 30B A3B Instruct	30.5B	S	955.4 tok/s
Qwen 3.5 122B A10B	122B	S	254 tok/s
DeepSeek V4 Flash	284B	S	136.1 tok/s
Qwen 3.6 35B A3B	35B	S	802.9 tok/s

Frequently asked questions

Can H100 NVL 188GB run Nemotron Cascade 2 30B A3B?

Yes, H100 NVL 188GB can run Nemotron Cascade 2 30B A3B with a A grade (Runs well). Expected decode speed: 976.7 tok/s.

How much VRAM does Nemotron Cascade 2 30B A3B need?

Nemotron Cascade 2 30B A3B (30B parameters) requires approximately 41.2 GB of memory with Q4_K_M quantization.

What is the best quantization for Nemotron Cascade 2 30B A3B?

The recommended quantization for Nemotron Cascade 2 30B A3B is Q4_K_M, which balances quality and memory efficiency.

What speed will Nemotron Cascade 2 30B A3B run at on H100 NVL 188GB?

On H100 NVL 188GB, Nemotron Cascade 2 30B A3B achieves approximately 976.7 tokens per second decode speed with a time-to-first-token of 350ms using Q4_K_M quantization.

Can H100 NVL 188GB run Nemotron Cascade 2 30B A3B for coding?

For coding workloads, Nemotron Cascade 2 30B A3B on H100 NVL 188GB receives a A grade with 976.7 tok/s and 262K context.

What context window can Nemotron Cascade 2 30B A3B use on H100 NVL 188GB?

On H100 NVL 188GB, Nemotron Cascade 2 30B A3B can safely use up to 262K tokens of context. The model's official context limit is 262K, but available memory constrains the safe maximum.

See all results for H100 NVL 188GB See all hardware for Nemotron Cascade 2 30B A3B

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