Llama 3 3 Nemotron Super 49B V1 MLX 4bit — Hardware Requirements & GPU Compatibility
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145 downloads
1 likesSpecifications
- Publisher
- MLX Community
- Family
- Llama 3
- Parameters
- 7.8B
- Architecture
- DeciLMForCausalLM
- Context Length
- 131,072 tokens
- Vocabulary Size
- 128,256
- Release Date
- 2025-04-08
- License
- Other
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How Much VRAM Does Llama 3 3 Nemotron Super 49B V1 MLX 4bit Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| BF16 | 16.00 | 17.1 GB | — | 15.59 GB | Brain floating point 16 — preferred for training |
Which GPUs Can Run Llama 3 3 Nemotron Super 49B V1 MLX 4bit?
BF16 · 17.1 GBLlama 3 3 Nemotron Super 49B V1 MLX 4bit (BF16) requires 17.1 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 23+ GB is recommended. 6 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.
Runs great
— Plenty of headroom
Which Devices Can Run Llama 3 3 Nemotron Super 49B V1 MLX 4bit?
BF16 · 17.1 GB21 devices with unified memory can run Llama 3 3 Nemotron Super 49B V1 MLX 4bit, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, Mac Mini M4 Pro (24 GB).
Runs great
— Plenty of headroomRelated Models
Frequently Asked Questions
- How much VRAM does Llama 3 3 Nemotron Super 49B V1 MLX 4bit need?
Llama 3 3 Nemotron Super 49B V1 MLX 4bit requires 17.1 GB of VRAM at BF16.
VRAM = Weights + KV Cache + Overhead
Weights = 7.8B × 16 bits ÷ 8 = 15.6 GB
KV Cache + Overhead ≈ 1.5 GB (at 2K context + ~0.3 GB framework)
VRAM usage by quantization
BF1617.1 GB- Can I run Llama 3 3 Nemotron Super 49B V1 MLX 4bit on a Mac?
Llama 3 3 Nemotron Super 49B V1 MLX 4bit requires at least 17.1 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 Llama 3 3 Nemotron Super 49B V1 MLX 4bit locally?
Yes — Llama 3 3 Nemotron Super 49B V1 MLX 4bit can run locally on consumer hardware. At BF16 quantization it needs 17.1 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is Llama 3 3 Nemotron Super 49B V1 MLX 4bit?
At BF16, Llama 3 3 Nemotron Super 49B V1 MLX 4bit can reach ~170 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~38 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 ÷ 17.1 × 0.55 = ~170 tok/s
Estimated speed at BF16 (17.1 GB)
AMD Instinct MI300X~170 tok/sNVIDIA GeForce RTX 4090~38 tok/sNVIDIA H100 SXM~127 tok/sAMD Instinct MI250X~105 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of Llama 3 3 Nemotron Super 49B V1 MLX 4bit?
At BF16, the download is about 15.59 GB.
- Which GPUs can run Llama 3 3 Nemotron Super 49B V1 MLX 4bit?
6 consumer GPUs can run Llama 3 3 Nemotron Super 49B V1 MLX 4bit at BF16 (17.1 GB). Top options include NVIDIA GeForce RTX 5090, AMD Radeon RX 7900 XT, AMD Radeon RX 7900 XTX. 1 GPU have plenty of headroom for comfortable inference.
- Which devices can run Llama 3 3 Nemotron Super 49B V1 MLX 4bit?
21 devices with unified memory can run Llama 3 3 Nemotron Super 49B V1 MLX 4bit at BF16 (17.1 GB), including Mac Mini M4 (32 GB), Mac Mini M4 Pro (24 GB), Mac Mini M4 Pro (48 GB), Mac Pro M2 Ultra (192 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.