How fast will Qwen3 30B A3B feel on the NVIDIA DGX Spark 128GB?

Qwen3 30B A3B on the NVIDIA DGX Spark 128GB

Qwen3 30B A3B is a 30.53B-parameter mixture-of-experts model (3.3B active per token). At Q4_K_M it needs about 19.3 GB of memory. The NVIDIA DGX Spark 128GB has 119 GB usable, so it fits entirely in memory. Expect about 42 tokens/sec (36–49), with the first token after 0.3 s for a short prompt. This estimate is projected from the hardware specs; no benchmarks exist yet.

Speed by quantization

QuantizationFile sizeMemoryGenerationFirst tokenSource
Q4_K_M18.6 GBFits42 tok/s0.3 sProjected
Q8_032.5 GBFits24 tok/s0.3 sProjected
FP1661.1 GBFits13 tok/s0.3 sProjected

Qwen3 30B A3B on other hardware

Other models on the NVIDIA DGX Spark 128GB

All models on the NVIDIA DGX Spark 128GB · Qwen3 30B A3B on all hardware

Estimates for a short prompt on a single device. Measured numbers come from community benchmarks (r/LocalLLaMA, localscore.ai and more); others are derived from similar setups or projected from specs. Open source on GitHub.