ONNX Community·Gemma·Gemma3ForCausalLM

Gemma 3 270M IT ONNX — Hardware Requirements & GPU Compatibility

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1.9K downloads 26 likes33K context

Specifications

Publisher
ONNX Community
Family
Gemma
Parameters
270M
Architecture
Gemma3ForCausalLM
Context Length
32,768 tokens
Vocabulary Size
262,144
Release Date
2026-03-13
License
Gemma Terms

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How Much VRAM Does Gemma 3 270M IT ONNX Need?

Select a quantization to see compatible GPUs below.

QuantizationBitsVRAM
Q2_K3.400.4 GB
Q3_K_S3.500.4 GB
Q3_K_M3.900.5 GB
Q4_04.000.5 GB
Q4_K_M4.800.5 GB
Q5_K_M5.700.5 GB
Q6_K6.600.6 GB
Q8_08.000.6 GB

Which GPUs Can Run Gemma 3 270M IT ONNX?

Q4_K_M · 0.5 GB

Gemma 3 270M IT ONNX (Q4_K_M) requires 0.5 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 1+ GB is recommended. Using the full 33K context window can add up to 0.4 GB, bringing total usage to 0.8 GB. 35 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.

Which Devices Can Run Gemma 3 270M IT ONNX?

Q4_K_M · 0.5 GB

33 devices with unified memory can run Gemma 3 270M IT ONNX, including NVIDIA DGX H100, NVIDIA DGX A100 640GB.

Related Models

Frequently Asked Questions

How much VRAM does Gemma 3 270M IT ONNX need?

Gemma 3 270M IT ONNX requires 0.5 GB of VRAM at Q4_K_M, or 0.6 GB at Q8_0.

VRAM = Weights + KV Cache + Overhead

Weights = 270M × 4.8 bits ÷ 8 = 0.2 GB

KV Cache + Overhead 0.3 GB (at 2K context + ~0.3 GB framework)

KV Cache + Overhead 0.6 GB (at full 33K context)

VRAM usage by quantization

0.5 GB
0.8 GB

Learn more about VRAM estimation →

What's the best quantization for Gemma 3 270M IT ONNX?

For Gemma 3 270M IT ONNX, Q4_K_M (0.5 GB) offers the best balance of quality and VRAM usage. Q5_K_S (0.5 GB) provides better quality if you have the VRAM. The smallest option is IQ2_XXS at 0.4 GB.

VRAM requirement by quantization

IQ2_XXS
0.4 GB
Q3_K_S
0.4 GB
Q4_1
0.5 GB
Q4_K_M
0.5 GB
Q5_K_S
0.5 GB
Q8_0
0.6 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Gemma 3 270M IT ONNX on a Mac?

Gemma 3 270M IT ONNX requires at least 0.4 GB at IQ2_XXS, which exceeds the unified memory of most consumer Macs. You would need a Mac Studio or Mac Pro with a high-memory configuration.

Can I run Gemma 3 270M IT ONNX locally?

Yes — Gemma 3 270M IT ONNX can run locally on consumer hardware. At Q4_K_M quantization it needs 0.5 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is Gemma 3 270M IT ONNX?

At Q4_K_M, Gemma 3 270M IT ONNX can reach ~5949 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~1337 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.

tok/s = (bandwidth GB/s ÷ model GB) × efficiency

Example: AMD Instinct MI300X5300 ÷ 0.5 × 0.55 = ~5949 tok/s

Estimated speed at Q4_K_M (0.5 GB)

~5949 tok/s
~1337 tok/s
~4447 tok/s
~3678 tok/s

Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.

Learn more about tok/s estimation →

What's the download size of Gemma 3 270M IT ONNX?

At Q4_K_M, the download is about 0.16 GB. The full-precision Q8_0 version is 0.27 GB. The smallest option (IQ2_XXS) is 0.07 GB.

Which GPUs can run Gemma 3 270M IT ONNX?

35 consumer GPUs can run Gemma 3 270M IT ONNX at Q4_K_M (0.5 GB). Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT. 35 GPUs have plenty of headroom for comfortable inference.

Which devices can run Gemma 3 270M IT ONNX?

33 devices with unified memory can run Gemma 3 270M IT ONNX at Q4_K_M (0.5 GB), including Mac Mini M4 (16 GB), Mac Mini M4 (32 GB), Mac Mini M4 Pro (24 GB), Mac Mini M4 Pro (48 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.