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Can DGX Spark (GH200 480GB) run gemma-3-27b-it?

NVIDIA · 480 GB LPDDR5X · 500 GB/s bandwidth · Google · 27.4B · model ctx up to 128K

✅ Yes — DGX Spark (GH200 480GB) (480 GB) can run gemma-3-27b-it at Q4 (8K)
VRAM: 21.82 GB needed of 480 GB
Speed: ~19.0 tok/s (estimated)
SS · ExcellentComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
CUDA
Good for 💬 chatWorkable for ⌨️ codingGood for 📋 general
Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K19.08 GBYes19.0 ± est.
Q48K default21.82 GBYes19.0 ± est.
Q432K38.26 GBYes19.0 ± est.
FP164K58.54 GBYes5.3 ± est.
FP168K default61.28 GBYes5.3 ± est.
FP1632K77.72 GBYes5.3 ± 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
Q415.34 GB5.48 GB1 GB21.82 GB480 GB
FP1654.8 GB5.48 GB1 GB61.28 GB480 GB

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