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Google

Gemma 3 1B

Google · dense · 1B parameters · 32,768 context

Quality
35.0

Parameters

1B

Context Window

32K tokens

Architecture

Dense

Best GPU

RTX 3080

Quality Score

35/100

Intelligence Brief

Gemma 3 1B is a 1B parameter DENSE model from Google, featuring Grouped Query Attention (GQA) with 26 layers and 1,536 hidden dimensions. With a 32,768 token context window, it supports structured output, code, multilingual. On standardized benchmarks, it achieves MMLU 42, HumanEval 18, GSM8K 32. For self-hosted inference, RTX 3080 delivers optimal throughput at $133/month.

Architecture Details

TypeDENSE
Total Parameters1B
Active Parameters1B
Layers26
Hidden Dimension1,536
Attention Heads16
KV Heads4
Head Dimension128
Vocab Size262,144

Memory Requirements

BF16 Weights

2.0 GB

FP8 Weights

1.0 GB

INT4 Weights

0.5 GB

KV-Cache per Token26624 bytes
Activation Estimate0.20 GB

GPU Compatibility Matrix

Gemma 3 1B is compatible with 100% of GPU configurations across 41 GPUs at 3 precision levels.

BF16 (Full)
FP8 (Half)
INT4 (Quarter)
Blackwell(7 GPUs)
B200 NVL (pair)360GB
B300288GB
B100 SXM192GB
GB200 NVL72 (per GPU)192GB
Hopper(7 GPUs)
H100 NVL 94GB (per GPU pair)188GB
H200 SXM141GB
H2096GB
GH20096GB
Ada Lovelace(11 GPUs)
L40S48GB
L4048GB
RTX 6000 Ada48GB
L2048GB
Ampere(16 GPUs)
A100 80GB SXM80GB
A100 80GB PCIe80GB
A1664GB
RTX A600048GB
Legend:No fitVery tightTightModerateGoodExcellent

GPU Recommendations

RTX 3080optimal

BF16 · 1 GPU · vllm

90/100

score

Throughput

2.1K tok/s

Latency (ITL)

0.5ms

Est. TTFT

0ms

Cost/Month

$133

Cost/M Tokens

$0.02

Use this config →
RTX 4060optimal

BF16 · 1 GPU · vllm

90/100

score

Throughput

734.4 tok/s

Latency (ITL)

1.4ms

Est. TTFT

0ms

Cost/Month

$209

Cost/M Tokens

$0.11

Use this config →
RTX 3070optimal

BF16 · 1 GPU · vllm

90/100

score

Throughput

1.2K tok/s

Latency (ITL)

0.8ms

Est. TTFT

0ms

Cost/Month

$85

Cost/M Tokens

$0.03

Use this config →

Deployment Options

API

API Deployment

No API pricing available

Self-Hosted

Single GPU

RTX 3080

$133/mo

Min VRAM: 1 GB

Scale

Multi-GPU

RTX 3080

2.1K tok/s

Best available config

API Pricing Comparison

No API pricing data available for this model.

Performance Estimates

Throughput by GPU

RTX 3080
2.1K tok/s
RTX 4060
734.4 tok/s
RTX 3070
1.2K tok/s

VRAM Breakdown (RTX 3080, BF16)

Weights
KV
Act
Weights 2.0 GBKV-Cache 0.9 GBActivations 1.6 GBOverhead 0.2 GB

Precision Impact

bf16

2.0 GB

weights/GPU

~2.1K tok/s

fp8

1.0 GB

weights/GPU

int4

0.5 GB

weights/GPU

Quality Benchmarks

Bottom 25%
0th percentile across all models
MMLU
42.0
Bottom 25% (2th pctile)
HumanEval
18.0
Bottom 25% (1th pctile)
GSM8K
32.0
Bottom 25% (5th pctile)
MT-Bench
60.0
Bottom 25% (0th pctile)

Capabilities

Features

Tool Use Vision Code Math Reasoning Multilingual Structured Output

Supported Frameworks

vllmsglangtgitensorrt-llmollama

Supported Precisions

BF16 (default)FP8INT4

Where to Deploy Gemma 3 1B

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Frequently Asked Questions

How much VRAM does Gemma 3 1B need for inference?

Gemma 3 1B requires approximately 2.0 GB of VRAM at BF16 precision, 1.0 GB at FP8, or 0.5 GB at INT4 quantization. Additional VRAM is needed for KV-cache (26624 bytes per token) and activations (~0.20 GB).

What is the best GPU for Gemma 3 1B?

The top recommended GPU for Gemma 3 1B is the RTX 3080 using BF16 precision. It achieves approximately 2.1K tokens/sec at an estimated cost of $133/month ($0.02/M tokens). Score: 90/100.

How much does Gemma 3 1B inference cost?

Gemma 3 1B inference costs vary by provider and GPU setup. Use our calculator for detailed cost estimates across all providers.