Can gemma 3 27b it run on NVIDIA H800 80GB?

YES — Runs Great

C50Usable

Estimated from fit model

gemma 3 27b it needs ~28.8 GB VRAM. NVIDIA H800 80GB has 80.0 GB. With Q4_K_M quantization, expect ~148 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) — 28.8 GB, 147.5 tok/s, Runs well

28.8 GB required80.0 GB available

36% VRAM used

Fit status

Runs well

Decode

147.5 tok/s

TTFT

1312 ms

Safe context

275K

Memory

28.8 GB / 80.0 GB

Memory breakdown

Weights16.5 GB

KV Cache3.2 GB

Runtime1.2 GB

Headroom8.0 GB

See how fast it feels

See how fast it feelsgemma 3 27b it on NVIDIA H800 80GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.

When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.

Key benefits of running locally:
  - Full privacy: your prompts never leave your machine
  - No per-token cost or rate limits
  - Works offline once the model is downloaded
  - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:

  Model size     Q4 (4-bit)    Q8 (8-bit)    FP16
  7B params      ~4.3 GB       ~7.5 GB       ~14 GB
  13B params     ~7.9 GB       ~13.9 GB      ~26 GB
  70B params     ~42.7 GB      ~74.9 GB      ~140 GB

Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 147.5 tok/s decode · 1.3s TTFT (warm) · 369 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	C	Runs well	147.5 tok/s	716 ms	275K
Coding	C	Runs well	147.5 tok/s	1312 ms	275K
Agentic Coding	C	Runs well	147.5 tok/s	1909 ms	275K
Reasoning	C	Runs well	147.5 tok/s	1551 ms	275K
RAG	C	Runs well	147.5 tok/s	2386 ms	275K

Quantization options

How gemma 3 27b it (27B params) fits at each quantization level on NVIDIA H800 80GB (80.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	10.5 GB	Low	C41
Q3_K_S	3	13.2 GB	Low	C41
NVFP4	4	15.1 GB	Medium	C41
Q4_K_M	4	16.5 GB	Medium	C41
Q5_K_M	5	19.4 GB	High	C42
Q6_K	6	22.1 GB	High	C42
Q8_0	8	28.9 GB	Very High	C44
F16Best for your GPU	16	55.4 GB	Maximum	C48

Get started

Copy-paste commands to run gemma 3 27b it on your machine.

Run

lms load hf-unsloth--gemma-3-27b-it-gguf && lms server start

Frequently asked questions

Can NVIDIA H800 80GB run gemma 3 27b it?

Yes, NVIDIA H800 80GB can run gemma 3 27b it with a C grade (Runs well). Expected decode speed: 147.5 tok/s.

How much VRAM does gemma 3 27b it need?

gemma 3 27b it (27B parameters) requires approximately 28.8 GB of memory with Q4_K_M quantization.

What is the best quantization for gemma 3 27b it?

The recommended quantization for gemma 3 27b it is Q4_K_M, which balances quality and memory efficiency.

What speed will gemma 3 27b it run at on NVIDIA H800 80GB?

On NVIDIA H800 80GB, gemma 3 27b it achieves approximately 147.5 tokens per second decode speed with a time-to-first-token of 1312ms using Q4_K_M quantization.

Can NVIDIA H800 80GB run gemma 3 27b it for coding?

For coding workloads, gemma 3 27b it on NVIDIA H800 80GB receives a C grade with 147.5 tok/s and 275K context.

What context window can gemma 3 27b it use on NVIDIA H800 80GB?

On NVIDIA H800 80GB, gemma 3 27b it can safely use up to 275K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for NVIDIA H800 80GB See all hardware for gemma 3 27b it

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