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// RUN — FITS
Can the NVIDIA DGX Spark run Tri-21B?
Yes — here's how fast and up to what context, with real measured numbers.
Tri-21B on the NVIDIA DGX Spark
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | yes | 276k | 4.8-5.7 t/s | ~0.2-0.2 (slow) |
| Q8 | yes | 355k | 9.6-11.5 t/s | ~0.4-0.4 (slow) |
| Q4 | yes | 389k | 17.2-20.5 t/s | ~0.6-0.7 (slow) |
Estimate (memory-bound). Beyond "max context" the KV cache spills to SSD swap and speed drops to the "beyond" figure.
FAQ
Can the NVIDIA DGX Spark run Tri-21B?▶
Yes. At Q4 it generates ~17.2-20.5 tok/s and fits up to 389k context; beyond that it spills to SSD swap and slows to ~0.6-0.7 tok/s.
How much context fits?▶
At Q4, up to about 389k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.