NVIDIA·NemotronHForCausalLM

NVIDIA Nemotron Nano 9B v2 Japanese — Hardware Requirements & GPU Compatibility

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NVIDIA Nemotron Nano 9B v2 Japanese is a specialized variant of the Nemotron Nano 9B v2, fine-tuned for Japanese language understanding and generation. At 8.9 billion parameters, it maintains the same hardware-friendly footprint as the English version while delivering natural Japanese conversational ability. For users looking to run a Japanese-language assistant locally, this model offers a rare combination of compact size and dedicated language optimization from a major hardware vendor. It handles Japanese text with the fluency you'd expect from a purpose-built model rather than a multilingual afterthought.

281.4K downloads 124 likesFeb 2026131K context

Specifications

Publisher
NVIDIA
Parameters
8.9B
Architecture
NemotronHForCausalLM
Context Length
131,072 tokens
Vocabulary Size
131,072
Release Date
2026-02-19
License
Other

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How Much VRAM Does NVIDIA Nemotron Nano 9B v2 Japanese Need?

Select a quantization to see compatible GPUs below.

QuantizationBitsVRAM
IQ3_XS3.304.4 GB
IQ3_S3.404.5 GB
Q2_K3.404.5 GB
Q3_K_S3.504.6 GB
IQ3_M3.604.7 GB
Q3_K_M3.905.0 GB
Q4_04.005.2 GB
Q3_K_L4.105.3 GB
IQ4_XS4.305.5 GB
Q4_K_S4.505.7 GB
IQ4_NL4.505.7 GB
Q4_K_M4.806.0 GB
Q5_05.006.3 GB
Q5_15.506.8 GB
Q5_K_S5.506.8 GB
Q5_K_M5.707.0 GB
Q6_K6.608.0 GB
Q8_08.009.6 GB

Which GPUs Can Run NVIDIA Nemotron Nano 9B v2 Japanese?

Q4_K_M · 6.0 GB

NVIDIA Nemotron Nano 9B v2 Japanese (Q4_K_M) requires 6.0 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 8+ GB is recommended. Using the full 131K context window can add up to 25.9 GB, bringing total usage to 31.9 GB. 35 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti, NVIDIA GeForce RTX 3070 Ti.

Which Devices Can Run NVIDIA Nemotron Nano 9B v2 Japanese?

Q4_K_M · 6.0 GB

33 devices with unified memory can run NVIDIA Nemotron Nano 9B v2 Japanese, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, MacBook Air 13" M3 (8 GB).

Related Models

Frequently Asked Questions

How much VRAM does NVIDIA Nemotron Nano 9B v2 Japanese need?

NVIDIA Nemotron Nano 9B v2 Japanese requires 6.0 GB of VRAM at Q4_K_M, or 9.6 GB at Q8_0. Full 131K context adds up to 25.9 GB (31.9 GB total).

VRAM = Weights + KV Cache + Overhead

Weights = 8.9B × 4.8 bits ÷ 8 = 5.3 GB

KV Cache + Overhead 0.7 GB (at 2K context + ~0.3 GB framework)

KV Cache + Overhead 26.6 GB (at full 131K context)

VRAM usage by quantization

6.0 GB
31.9 GB

Learn more about VRAM estimation →

What's the best quantization for NVIDIA Nemotron Nano 9B v2 Japanese?

For NVIDIA Nemotron Nano 9B v2 Japanese, Q4_K_M (6.0 GB) offers the best balance of quality and VRAM usage. Q5_0 (6.3 GB) provides better quality if you have the VRAM. The smallest option is IQ3_XS at 4.4 GB.

VRAM requirement by quantization

IQ3_XS
4.4 GB
IQ3_M
4.7 GB
Q4_K_S
5.7 GB
Q4_K_M
6.0 GB
Q5_1
6.8 GB
Q8_0
9.6 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run NVIDIA Nemotron Nano 9B v2 Japanese on a Mac?

NVIDIA Nemotron Nano 9B v2 Japanese requires at least 4.4 GB at IQ3_XS, 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 NVIDIA Nemotron Nano 9B v2 Japanese locally?

Yes — NVIDIA Nemotron Nano 9B v2 Japanese can run locally on consumer hardware. At Q4_K_M quantization it needs 6.0 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is NVIDIA Nemotron Nano 9B v2 Japanese?

At Q4_K_M, NVIDIA Nemotron Nano 9B v2 Japanese can reach ~483 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~109 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 ÷ 6.0 × 0.55 = ~483 tok/s

Estimated speed at Q4_K_M (6.0 GB)

~483 tok/s
~109 tok/s
~361 tok/s
~298 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 NVIDIA Nemotron Nano 9B v2 Japanese?

At Q4_K_M, the download is about 5.33 GB. The full-precision Q8_0 version is 8.89 GB. The smallest option (IQ3_XS) is 3.67 GB.