Can Gemma 3 1B run on NVIDIA H800 80GB?

YES — Runs Great

C46Usable

Estimated from fit model

Gemma 3 1B needs ~9.9 GB VRAM. NVIDIA H800 80GB has 80.0 GB. With Q4_K_M quantization, expect ~14 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: 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) — 9.9 GB, 14.0 tok/s, Runs well

9.9 GB required80.0 GB available

12% VRAM used

Fit status

Runs well

Decode

14.0 tok/s

TTFT

13829 ms

Safe context

33K

Memory

9.9 GB / 80.0 GB

Memory breakdown

Weights0.6 GB

KV Cache0.4 GB

Runtime0.9 GB

Headroom8.0 GB

See how fast it feels

See how fast it feelsGemma 3 1B 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: 14.0 tok/s decode · 13.8s TTFT (warm) · 35 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	14.0 tok/s	7543 ms	33K
Coding	C	Runs well	14.0 tok/s	13829 ms	33K
Agentic Coding	C	Runs well	14.0 tok/s	20114 ms	33K
Reasoning	C	Runs well	14.0 tok/s	16343 ms	33K
RAG	C	Runs well	14.0 tok/s	25143 ms	33K

Quantization options

How Gemma 3 1B (1B params) fits at each quantization level on NVIDIA H800 80GB (80.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	0.4 GB	Low	C48
Q3_K_S	3	0.5 GB	Low	C48
NVFP4	4	0.6 GB	Medium	C48
Q4_K_M	4	0.6 GB	Medium	C48
Q5_K_M	5	0.7 GB	High	C48
Q6_K	6	0.8 GB	High	C48
Q8_0	8	1.1 GB	Very High	C48
F16Best for your GPU	16	2.1 GB	Maximum	C48

Get started

Copy-paste commands to run Gemma 3 1B on your machine.

Run

lms load gemma-3-1b-it && lms server start

Upgrade options

Hardware that runs Gemma 3 1B well

MacBook Pro M3 Max 128GBBudget pick

128 GB Unified (+48)

This setup is broadly balanced for this model.14 tok/s decode

~$2,499 MSRP

Mac Studio M2 Ultra 128GBBest value

128 GB Unified (+48)

This setup is broadly balanced for this model.14 tok/s decode

~$3,999 MSRP

NVIDIA DGX Spark 128GBNVIDIA upgrade

128 GB Unified (+48)

Adds memory headroom for longer context windows and future model growth.14 tok/s decode

Adds memory headroom for longer context windows and future model growth.

Frequently asked questions

Can NVIDIA H800 80GB run Gemma 3 1B?

Yes, NVIDIA H800 80GB can run Gemma 3 1B with a C grade (Runs well). Expected decode speed: 14.0 tok/s.

How much VRAM does Gemma 3 1B need?

Gemma 3 1B (1B parameters) requires approximately 9.9 GB of memory with Q4_K_M quantization.

What is the best quantization for Gemma 3 1B?

The recommended quantization for Gemma 3 1B is Q4_K_M, which balances quality and memory efficiency.

What speed will Gemma 3 1B run at on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Gemma 3 1B achieves approximately 14.0 tokens per second decode speed with a time-to-first-token of 13829ms using Q4_K_M quantization.

Can NVIDIA H800 80GB run Gemma 3 1B for coding?

For coding workloads, Gemma 3 1B on NVIDIA H800 80GB receives a C grade with 14.0 tok/s and 33K context.

What context window can Gemma 3 1B use on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Gemma 3 1B can safely use up to 33K tokens of context. The model's official context limit is 33K, but available memory constrains the safe maximum.

See all results for NVIDIA H800 80GB See all hardware for Gemma 3 1B

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Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Runs well

14.0 tok/s

7543 ms

33K

Coding

Runs well

14.0 tok/s

13829 ms

33K

Agentic Coding

Runs well

14.0 tok/s

20114 ms

33K

Reasoning

Runs well

14.0 tok/s

16343 ms

33K

RAG

Runs well

14.0 tok/s

25143 ms

33K

Quant

Bits

VRAM

Quality

Fit

Q2_K

0.4 GB

Low

C48

Q3_K_S

0.5 GB

Low

C48

NVFP4

0.6 GB

Medium

C48

Q4_K_M

0.6 GB

Medium

C48

Q5_K_M

0.7 GB

High

C48

Q6_K

0.8 GB

High

C48

Q8_0

1.1 GB

Very High

C48

F16Best for your GPU

2.1 GB

Maximum

C48

Frequently asked questions

Can NVIDIA H800 80GB run Gemma 3 1B?

Yes, NVIDIA H800 80GB can run Gemma 3 1B with a C grade (Runs well). Expected decode speed: 14.0 tok/s.

How much VRAM does Gemma 3 1B need?

Gemma 3 1B (1B parameters) requires approximately 9.9 GB of memory with Q4_K_M quantization.

What is the best quantization for Gemma 3 1B?

The recommended quantization for Gemma 3 1B is Q4_K_M, which balances quality and memory efficiency.

What speed will Gemma 3 1B run at on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Gemma 3 1B achieves approximately 14.0 tokens per second decode speed with a time-to-first-token of 13829ms using Q4_K_M quantization.

Can NVIDIA H800 80GB run Gemma 3 1B for coding?

For coding workloads, Gemma 3 1B on NVIDIA H800 80GB receives a C grade with 14.0 tok/s and 33K context.

What context window can Gemma 3 1B use on NVIDIA H800 80GB?

On NVIDIA H800 80GB, Gemma 3 1B can safely use up to 33K tokens of context. The model's official context limit is 33K, but available memory constrains the safe maximum.