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Yes. d3 4B (vLLM Semantic Router, decision) fits in fast memory on DGX Spark 64GB (ASUS, Dell, HP, MSI, Acer, Gigabyte) at Q8_0 (6.9 GB needed, 54.4 GB usable), about 35 tok/s (estimate).
Hardware: DGX Spark 64GB (ASUS, Dell, HP, MSI, Acer, Gigabyte) · Model: d3 4B (vLLM Semantic Router, decision)
DGX Spark 64GB (ASUS, Dell, HP, MSI, Acer, Gigabyte) has 64 GB of unified memory and 273 GB/s of memory bandwidth. DGX OS keeps about 15% of unified memory, so Ollama can use 54.4 GB. d3 4B (vLLM Semantic Router, decision) (4B, vLLM Semantic Router) at Q8_0 is a 5.8 GB download and needs 6.9 GB with headroom for about 8k tokens.
| Best quant | Q8_0 |
|---|---|
| Download size | 5.8 GB |
| Memory needed | 6.9 GB |
| Usable fast memory | 54.4 GB |
| Fit | fits in fast memory |
| Estimated speed | ~35 tok/s (estimate) |
| Command | ollama run d3:4b-q8_0 |
Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.
A project by OnDevice Labs · llms.txt