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Can the Instinct MI455X run gte-modernbert?
Yes — here's how fast and up to what context, with real measured numbers.
gte-modernbert on the Instinct MI455X
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 6037k | 41436.2-50644.3 t/s | ~84.6-103.4 (slow) |
| Q8 | yes | 6039k | 82872.5-101288.6 t/s | ~169.1-206.7 (slow) |
| Q4 | yes | 6040k | 147986.6-180872.5 t/s | ~302-369.1 (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 Instinct MI455X run gte-modernbert?▶
Yes. At Q4 it generates ~147986.6-180872.5 tok/s and fits up to 6040k context; beyond that it spills to system RAM offload (depends on your system RAM) and slows to ~302-369.1 tok/s.
How much context fits?▶
At Q4, up to about 6040k tokens stay in fast memory; longer context spills to system RAM offload (depends on your system RAM) and throughput collapses.