Can I Run Qwen 3.5 on NVIDIA DGX Spark?

Autor: Jakub Rusinowski · Ostatnia aktualizacja: 21 lipca 2026

Yes, comfortably — you'll have ~54.3 GB of headroom running Qwen 3.5 122B-A10B at Q4_K_M (73.6575 GB, ~29 tok/s (est.)) with room for up to 128K context.

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NVIDIA DGX Spark (128GB)
128 GB VRAM · 150 W board power
Ceny w 2026 są niestabilne — sprawdź aktualną ofertę.
Sprawdź cenę na Amazon

NVIDIA DGX Spark Specs

VRAM128 GB
Memory Bandwidth273 GB/s

Qwen 3.5 122B-A10B on the NVIDIA DGX Spark: VRAM by quantization

QuantVRAM neededFits 128 GB?Max context
F16246.2 GB✗ No
Q8_0131.9 GB✗ No
Q6_K102.3 GB✓ Yes64K
Q5_K_M88.7 GB✓ Yes64K
Q4_K_M75.9 GB✓ Yes128K
Q3_K_M54.2 GB✓ Yes128K
Q2_K42.3 GB✓ Yes128K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 128 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Qwen 3.5 Sizes That Fit the NVIDIA DGX Spark

Qwen 3.5 122B-A10BQ4_K_M · 73.6575 GB · ~29 tok/s (est.)
Qwen 3.5 35B-A3BQ4_K_M · 21.13125 GB · ~71 tok/s (est.)
Qwen 3.5 27BQ4_K_M · 16.30125 GB · ~13 tok/s (est.)
Qwen 3.5 9BQ4_K_M · 5.43375 GB · ~35 tok/s (est.)
Qwen 3.5 4BQ4_K_M · 2.415 GB · ~68 tok/s (est.)
Qwen 3.5 2BQ4_K_M · 1.2075 GB · ~111 tok/s (est.)
Qwen 3.5 0.8BQ4_K_M · 0.48300000000000004 GB · ~182 tok/s (est.)
Buy vs. rent Qwen 3.5
Buy the GPU
~$4,699
NVIDIA DGX Spark · MSRP
Rent by the hour
from $0.77/hr
A100 (80 GB) class

At 2 hrs/day, buying (~$4,699) beats renting at $0.77/hr after about 8.5 years.

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Vast.ai $0.77/hr · typical low · varies
Rent on Vast.ai →
RunPod $1.39/hr
Rent on RunPod →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Does the NVIDIA DGX Spark have enough VRAM for Qwen 3.5?

Yes, comfortably — you'll have ~54.3 GB of headroom running Qwen 3.5 122B-A10B at Q4_K_M (73.6575 GB, ~29 tok/s (est.)) with room for up to 128K context.

Which quantization of Qwen 3.5 should I use on the NVIDIA DGX Spark?

Qwen 3.5 122B-A10B at Q4_K_M quantization (73.6575 GB), estimated ~29 tokens/sec, up to 128K context.

Every Qwen 3.5 size on the NVIDIA DGX Spark

SizeVRAMVerdictSpeed
Qwen 3.5 397B-A17B134.0 GBDoes not fit
Qwen 3.5 122B-A10B73.7 GBRuns~29 tok/s
Qwen 3.5 35B-A3B21.1 GBRuns~71 tok/s
Qwen 3.5 27B16.3 GBRuns~13 tok/s
Qwen 3.5 9B5.4 GBRuns~35 tok/s
Qwen 3.5 4B2.4 GBRuns~68 tok/s
Qwen 3.5 2B1.2 GBRuns~111 tok/s
Qwen 3.5 0.8B0.5 GBRuns~182 tok/s

Qwen 3.5 on Other GPUs

Popular Models on the NVIDIA DGX Spark

VRAM Tier

Troubleshooting

Buying Guide

← Can I Run It? | Qwen 3.5 Model Page | NVIDIA DGX Spark GPU Page | Check Your Hardware