Nemotron Flash 3B — Hardware Requirements & GPU Compatibility
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Nemotron Flash 3B is a 2.7B-parameter open language model from NVIDIA. It supports a context window of up to 29,000 tokens. At BF16 it needs about 6.03 GB of VRAM — see which GPUs and Macs can run it below.
157 downloads
17 likesSpecifications
- Publisher
- NVIDIA
- Parameters
- 2.7B
- Architecture
- NemotronFlashForCausalLM
- Context Length
- 29,000 tokens
- Vocabulary Size
- 131,072
- Release Date
- 2026-01-09
- License
- Other
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HuggingFace
How Much VRAM Does Nemotron Flash 3B Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| BF16 | 16.00 | 6.0 GB | 9.0 GB | 5.50 GB | Brain floating point 16 — preferred for training |
Which GPUs Can Run Nemotron Flash 3B?
BF16 · 6.0 GBNemotron Flash 3B (BF16) 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 29K context window can add up to 3.0 GB, bringing total usage to 9.0 GB. 35 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti, NVIDIA GeForce RTX 3070 Ti.
Runs great
— Plenty of headroom
Which Devices Can Run Nemotron Flash 3B?
BF16 · 6.0 GB33 devices with unified memory can run Nemotron Flash 3B, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, MacBook Air 13" M3 (8 GB).
Runs great
— Plenty of headroomDecent
— Enough memory, may be tightRelated Models
Frequently Asked Questions
- How much VRAM does Nemotron Flash 3B need?
Nemotron Flash 3B requires 6.0 GB of VRAM at BF16. Full 29K context adds up to 3.0 GB (9.0 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 2.7B × 16 bits ÷ 8 = 5.5 GB
KV Cache + Overhead ≈ 0.5 GB (at 2K context + ~0.3 GB framework)
KV Cache + Overhead ≈ 3.5 GB (at full 29K context)
VRAM usage by quantization
BF166.0 GBBF16 + full context9.0 GB- Can I run Nemotron Flash 3B on a Mac?
Nemotron Flash 3B requires at least 6.0 GB at BF16, 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 Nemotron Flash 3B locally?
Yes — Nemotron Flash 3B can run locally on consumer hardware. At BF16 quantization it needs 6.0 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is Nemotron Flash 3B?
At BF16, Nemotron Flash 3B 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 MI300X → 5300 ÷ 6.0 × 0.55 = ~483 tok/s
Estimated speed at BF16 (6.0 GB)
~483 tok/s~109 tok/s~361 tok/s~299 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of Nemotron Flash 3B?
At BF16, the download is about 5.50 GB.
- Which GPUs can run Nemotron Flash 3B?
35 consumer GPUs can run Nemotron Flash 3B at BF16 (6.0 GB). Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT, AMD Radeon RX 7600. 28 GPUs have plenty of headroom for comfortable inference.
- Which devices can run Nemotron Flash 3B?
33 devices with unified memory can run Nemotron Flash 3B at BF16 (6.0 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.