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Can DGX Spark (GH200 480GB) run Qwen3.6-35B-A3B-FP8?

NVIDIA · 480 GB LPDDR5X · 500 GB/s bandwidth · Qwen · 36.0B (active 36.0B) · MoE · model ctx up to NoneK

✅ Yes — DGX Spark (GH200 480GB) (480 GB) can run Qwen3.6-35B-A3B-FP8 at Q4 (8K)
VRAM: 28.0 GB needed of 480 GB
Speed: ~14.7 tok/s (estimated)
AA · GreatComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
CUDA
Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K24.4 GBYes14.7 ± est.
Q48K default28.0 GBYes14.7 ± est.
Q432K49.6 GBYes14.7 ± est.
FP164K76.6 GBYes4.0 ± est.
FP168K default80.2 GBYes4.0 ± est.
FP1632K101.8 GBYes4.0 ± est.

Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s means the model is far beyond this card (offload-only territory).

VRAM breakdown at 8K context

QuantWeightsKV cacheOverheadTotal neededDGX Spark (GH200 480GB) VRAM
Q419.8 GB7.2 GB1 GB28.0 GB480 GB
FP1672.0 GB7.2 GB1 GB80.2 GB480 GB

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