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// RUN — FITS
Can the AMD Instinct MI455X run Generative BST?
Yes — here's how fast and up to what context, with real measured numbers.
Generative BST on the AMD Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 2877k | 654.6-800.1 t/s | ~1.3-1.6 (slow) |
| Q8 | yes | 2949k | 1309.2-1600.1 t/s | ~2.7-3.3 (slow) |
| Q4 | yes | 2980k | 2337.8-2857.4 t/s | ~4.8-5.8 (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 Generative BST?▶
Yes. At Q4 it generates ~2337.8-2857.4 tok/s and fits up to 2980k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~4.8-5.8 tok/s.
How much context fits?▶
At Q4, up to about 2980k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.