Llama 4405B parameters
Hardware for Running Llama 4 Behemoth 405B Locally
Research-grade reasoning, multi-step problem solving (multi-GPU required). Below you'll find VRAM requirements at different quantization levels and our recommended GPUs at every budget.
VRAM Requirements
| Precision | VRAM Required | Notes |
|---|---|---|
| FP16 (full precision) | 810 GB | Best quality, highest VRAM usage |
| Q8 (8-bit quantized) | 430 GB | Near-lossless quality, good balance |
| Q4 (4-bit quantized) | 230 GB | Smallest footprint, slight quality loss |
Budget Picks
This model requires more VRAM than budget GPUs typically offer. Consider mid-range or premium options below.
Mid-Range Picks
This model exceeds mid-range GPU capacity at most quantization levels. See premium options below.
Premium Picks
NVIDIA A100 80GB PCIe
$12,000 – $15,000
- VRAM: 80GB HBM2e
- Tensor Cores: 432 (3rd Gen)
- Memory Bandwidth: 2,039 GB/s
Compatible Tools
Software you can use to run Llama 4 Behemoth 405B on your hardware:
vLLMTGIllama.cpp (multi-node)
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