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URL: https://willitrunai.com/can-run/qwen-3-coder-480b-a35b-on-h100-nvl-188gb


Can Qwen3-Coder 480B A35B Instruct run on H100 NVL 188GB?

YES — With Q2_K

A80Great
Estimated from fit model

Qwen3-Coder 480B A35B Instruct needs ~209.8 GB VRAM. H100 NVL 188GB has 188.0 GB. With Q2_K quantization, expect ~62 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: HighStack: StandardBottleneck: Host offload
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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.

Qwen3-Coder 480B A35B Instruct at Q4_K_M needs 315.4 GB — too much for H100 NVL 188GB (188.0 GB). Runs at Q2_K (209.8 GB) with low quality.
Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 315.4 GB, exceeds 188.0 GB available
315.4 GB required188.0 GB available
168% VRAM needed

127.4 GB over capacity — needs offload or smaller quantization

Fit status

Too heavy

Decode

23.9 tok/s

TTFT

8092 ms

Safe context

4K

Memory

315.4 GB / 188.0 GB

Offload

40%

Memory breakdown

Weights292.8 GB
KV Cache2.9 GB
Runtime0.9 GB
Headroom18.8 GB

See how fast it feels

With memory offload — actual speed may be lower
See how fast it feelsQwen3-Coder 480B A35B Instruct 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: 23.9 tok/s decode · 8.1s TTFT (warm) · 60 tok/s prefill

What limits this setup

It fits through host-memory offload, and offload is the main reason performance drops.

CPU or host-memory offload is active

About 10% of the working set spills out of accelerator memory, which usually hurts latency and sustained decode throughput.

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

Remove offload with more accelerator memory

Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

Buy headroom, not only minimum fit

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

Increase host RAM if you keep offloading

This setup may need roughly 19.4 GB of extra host RAM just for the offloaded portion, before OS and other tools.

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatFToo heavy22.0 tok/s4791 ms4K
CodingFToo heavy21.9 tok/s8850 ms4K
Agentic CodingFToo heavy21.6 tok/s13067 ms4K
ReasoningFToo heavy21.9 tok/s10459 ms4K
RAGFToo heavy21.6 tok/s16334 ms4K

Quantization options

How Qwen3-Coder 480B A35B Instruct (480B params) fits at each quantization level on H100 NVL 188GB (188.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
187.2 GB
LowF0
Q3_K_S
3
235.2 GB
LowF0
NVFP4
4

Get started

Copy-paste commands to run Qwen3-Coder 480B A35B Instruct on your machine.

Run

lms load Qwen3-Coder-480B-A35B-Instruct && lms server start

Upgrade options

Hardware that runs Qwen3-Coder 480B A35B Instruct well

AMD Instinct MI350X 288GBBest value
288 GB VRAM (+100)8000 GB/s (+200)
A
Makes the model fit on the accelerator instead of staying completely out of reach.35.3 tok/s decode

Makes the model fit on the accelerator instead of staying completely out of reach.

Raises estimated decode speed by about 48%.

~$8,000 MSRP

Frequently asked questions

See all results for H100 NVL 188GBSee all hardware for Qwen3-Coder 480B A35B Instruct
268.8 GB
Medium
F0
Q4_K_M
4
292.8 GB
MediumF0
Q5_K_M
5
345.6 GB
HighF0
Q6_K
6
393.6 GB
HighF0
Q8_0
8
513.6 GB
Very HighF0
F16
16
984.0 GB
MaximumF0