Qwen on NVIDIA Blackwell

Can I run Qwen3 30B-A3B on an NVIDIA DGX Spark (GB10)?

Yes. Qwen3 30B-A3B at Q4_K_M uses 18.5 GB of the 96.0 GB available on a NVIDIA DGX Spark (GB10), and runs at about 53.5 tokens per second. You can push the context to 128K.

Runs comfortably

18.5 GB of 96.0 GB · 19%
096 GB
Weights 17.3 GB
KV cache 0.8 GB
Runtime overhead 0.5 GB

Qwen3 30B-A3B at Q4_K_M leaves 77.5 GB spare on a NVIDIA DGX Spark (GB10). There is room to raise the context length or move up a quantisation level.

Generation53.5tok/s
Prompt processing7859tok/s
Max context128Ktokens
KV per 1K tokens0GB

Every quantisation of Qwen3 30B-A3B on a NVIDIA DGX Spark (GB10)

Highlighted row is the highest quality that still fits at 8K context.

QuantisationbpwWeights TotalVerdictMax ctxtok/s
FP16 / BF16 16.00 56.9 GB 58.1 GB Runs comfortably 128K 21.5
INT8 / W8A8 8.50 30.1 GB 31.3 GB Runs comfortably 128K 36.1
Q8_0 (GGUF) 8.50 30.1 GB 31.3 GB Runs comfortably 128K 36.1
FP8 (E4M3) 8.00 28.4 GB 29.7 GB Runs comfortably 128K 37.7
Q6_K 6.56 23.3 GB 24.6 GB Runs comfortably 128K 43.6
Q5_K_M 5.67 20.2 GB 21.4 GB Runs comfortably 128K 48.3
Q5_K_S 5.52 19.6 GB 20.9 GB Runs comfortably 128K 49.2
Q4_K_M 4.85 17.3 GB 18.5 GB Runs comfortably 128K 53.5
Q4_K_S 4.58 16.3 GB 17.6 GB Runs comfortably 128K 55.5
Q4_0 4.55 16.2 GB 17.5 GB Runs comfortably 128K 55.7
AWQ 4-bit 4.25 16.0 GB 17.2 GB Runs comfortably 128K 56.4
GPTQ 4-bit 4.25 16.0 GB 17.2 GB Runs comfortably 128K 56.4
MXFP4 4.25 16.0 GB 17.2 GB Runs comfortably 128K 56.4
IQ4_XS 4.25 15.2 GB 16.4 GB Runs comfortably 128K 58.1
Q3_K_M 3.91 14.0 GB 15.2 GB Runs comfortably 128K 61.1
IQ3_M 3.70 13.3 GB 14.5 GB Runs comfortably 128K 63.1
IQ3_XXS 3.06 11.1 GB 12.3 GB Runs comfortably 128K 70.0
Q2_K 2.63 9.6 GB 10.8 GB Runs comfortably 128K 75.6
IQ2_XXS 2.06 7.6 GB 8.8 GB Runs comfortably 128K 84.5
IQ1_M 1.75 6.5 GB 7.7 GB Runs comfortably 128K 90.3

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