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// RUN — FITS
Can the NVIDIA DGX Spark run Qwen2.5 Instruct (72B)?
Yes — here's how fast and up to what context, with real measured numbers.
Qwen2.5 Instruct (72B) on the NVIDIA DGX Spark
| Quant | Fits? | Max context | Speed | Beyond context |
|---|---|---|---|---|
| FP16 | no | — | — | — |
| Q8 | yes | 125k | 2.7-3.3 t/s | ~0.1-0.1 (slow) |
| Q4 | yes | 223k | 4.9-5.8 t/s | ~0.2-0.2 (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 Qwen2.5 Instruct (72B)?▶
Yes. At Q4 it generates ~4.9-5.8 tok/s and fits up to 223k context; beyond that it spills to SSD swap and slows to ~0.2-0.2 tok/s.
How much context fits?▶
At Q4, up to about 223k tokens stay in fast memory; longer context spills to SSD swap and throughput collapses.