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// RUN — FITS
Can the AMD Radeon RX 6900 XT run Zefiro?
Yes — here's how fast and up to what context, with real measured numbers.
Zefiro on the AMD Radeon RX 6900 XT
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | no | — | — | — |
| Q8 | yes | 47k | 46.1-56.3 t/s | ~3.6-4.4 (slow) |
| Q4 | yes | 71k | 82.3-100.6 t/s | ~6.4-7.9 (slow) |
Estimate (memory-bound). Beyond "max context" the KV cache spills to system RAM offload (depends on your system RAM) and speed drops to the "beyond" figure.
FAQ
Can the AMD Radeon RX 6900 XT run Zefiro?▶
Yes. At Q4 it generates ~82.3-100.6 tok/s and fits up to 71k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~6.4-7.9 tok/s.
How much context fits?▶
At Q4, up to about 71k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.