Compatibility Check
Can I Run Llama 3.1 405B on AMD Radeon RX 6900 XT?
No — AMD Radeon RX 6900 XT does not have enough memory for any Llama 3.1 405B variant.
Can't Run
Best variant: Q4_K_M
Not enough memory — need at least 256 GB RAM (have 64 GB) and 235 GB VRAM (have 16).
- GPU VRAM
- 16 GB
- Min VRAM (best fit)
- 235 GB
- Recommended VRAM
- 256 GB
- Estimated tok/s
- —
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Every Llama 3.1 405B quantization on AMD Radeon RX 6900 XT
Each row runs the compatibility engine against your VRAM, RAM, and the model's requirements.
| Quantization | File Size | Min VRAM | Rec VRAM | Context | Verdict | Estimated tok/s |
|---|---|---|---|---|---|---|
| Q2_K | 145 GB | 150 GB | 160 GB | 4K / 128K | Can't Run | — |
| Q4_K_MBest fit | 230 GB | 235 GB | 256 GB | 4K / 128K | Can't Run | — |
Upgrade options that fit Llama 3.1 405B better
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