Qwen on NVIDIA Blackwell
Can I run Qwen3 235B-A22B on an NVIDIA DGX Spark (GB10)?
Not at Q4_K_M — it needs 134.8 GB against 96.0 GB available. Drop to IQ3_XXS and it fits, at about 15.7 tokens per second.
Won't fit
134.8 GB of 96.0 GB · 140%0140 GB
Weights
132.8 GB
KV cache
1.5 GB
Runtime overhead
0.5 GB
Over the limit
38.8 GB
Short by 38.8 GB. You can run it with 66 of 94 layers on the NVIDIA DGX Spark (GB10) and the rest in system RAM, at roughly 6.20 tok/s — usable for batch work, painful for chat. A smaller quantisation or a shorter context is usually the better trade.
Generation6.20tok/s
Prompt processing1186tok/s
Max context0tokens
KV per 1K tokens0GB
Every quantisation of Qwen3 235B-A22B on a NVIDIA DGX Spark (GB10)
Highlighted row is the highest quality that still fits at 8K context.
| Quantisation | bpw | Weights | Total | Verdict | Max ctx | tok/s |
|---|---|---|---|---|---|---|
| FP16 / BF16 | 16.00 | 437.9 GB | 439.9 GB | Won't fit | — | 1.18 |
| INT8 / W8A8 | 8.50 | 232.3 GB | 234.3 GB | Won't fit | — | 2.59 |
| Q8_0 (GGUF) | 8.50 | 232.3 GB | 234.3 GB | Won't fit | — | 2.59 |
| FP8 (E4M3) | 8.00 | 218.9 GB | 220.9 GB | Won't fit | — | 2.80 |
| Q6_K | 6.56 | 179.5 GB | 181.5 GB | Won't fit | — | 3.74 |
| Q5_K_M | 5.67 | 155.2 GB | 157.2 GB | Won't fit | — | 4.67 |
| Q5_K_S | 5.52 | 151.1 GB | 153.1 GB | Won't fit | — | 4.92 |
| Q4_K_M | 4.85 | 132.8 GB | 134.8 GB | Won't fit | — | 6.20 |
| Q4_K_S | 4.58 | 125.5 GB | 127.5 GB | Won't fit | — | 6.94 |
| Q4_0 | 4.55 | 124.7 GB | 126.7 GB | Won't fit | — | 6.98 |
| AWQ 4-bit | 4.25 | 118.0 GB | 120.0 GB | Won't fit | — | 7.82 |
| GPTQ 4-bit | 4.25 | 118.0 GB | 120.0 GB | Won't fit | — | 7.82 |
| MXFP4 | 4.25 | 118.0 GB | 120.0 GB | Won't fit | — | 7.82 |
| IQ4_XS | 4.25 | 116.5 GB | 118.5 GB | Won't fit | — | 8.05 |
| Q3_K_M | 3.91 | 107.2 GB | 109.2 GB | Won't fit | — | 9.84 |
| IQ3_M | 3.70 | 101.5 GB | 103.5 GB | Won't fit | — | 11.4 |
| IQ3_XXS | 3.06 | 84.1 GB | 86.1 GB | Runs comfortably | 62K | 15.7 |
| Q2_K | 2.63 | 72.4 GB | 74.4 GB | Runs comfortably | 126K | 17.6 |
| IQ2_XXS | 2.06 | 56.9 GB | 58.9 GB | Runs comfortably | 128K | 21.2 |
| IQ1_M | 1.75 | 48.4 GB | 50.4 GB | Runs comfortably | 128K | 23.7 |