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Can DGX Spark (GH200 480GB) run gemma-4-26B-A4B-it-AWQ-4bit?

NVIDIA · 480 GB LPDDR5X · 500 GB/s bandwidth · cyankiwi · 26.6B · model ctx up to NoneK

✅ Yes — DGX Spark (GH200 480GB) (480 GB) can run gemma-4-26B-A4B-it-AWQ-4bit at Q4 (8K)
VRAM: 20.95 GB needed of 480 GB
Speed: ~19.9 tok/s (estimated)
SS · ExcellentComposite 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)
Q44K18.29 GBYes19.9 ± est.
Q48K default20.95 GBYes19.9 ± est.
Q432K36.91 GBYes19.9 ± est.
FP164K56.86 GBYes5.5 ± est.
FP168K default59.52 GBYes5.5 ± est.
FP1632K75.48 GBYes5.5 ± 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
Q414.63 GB5.32 GB1 GB20.95 GB480 GB
FP1653.2 GB5.32 GB1 GB59.52 GB480 GB

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