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// RUN — FITS
Can the AMD Instinct MI455X run XVERSE-MoE-A4.2B?
Yes — here's how fast and up to what context, with real measured numbers.
XVERSE-MoE-A4.2B on the AMD Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 5913k | 1470-1796.7 t/s | ~3-3.7 (slow) |
| Q8 | yes | 5977k | 2940-3593.3 t/s | ~6-7.3 (slow) |
| Q4 | yes | 6006k | 5250-6416.7 t/s | ~10.7-13.1 (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 Instinct MI455X run XVERSE-MoE-A4.2B?▶
Yes. At Q4 it generates ~5250-6416.7 tok/s and fits up to 6006k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~10.7-13.1 tok/s.
How much context fits?▶
At Q4, up to about 6006k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.