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Can RTX 4090 24GB run Laguna S 2.1?

NVIDIA · 24 GB GDDR6X · 1008 GB/s bandwidth · Poolside · 118.0B (active 8.0B) · MoE · model ctx up to 1024K

❌ No — Laguna S 2.1 Q4 needs 66.65 GB, card only has 24 GB
VRAM: 66.65 GB needed of 24 GB
Speed: ~29.0 tok/s (estimated)
FF · No FitComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
CUDA
Your GPU won't fit Laguna S 2.1, but runs these similar models: Qwen3-8B, gemma-4-26B-A4B-itor☁️ Rent on RunPod from ~$0.50/hr
Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K66.65 GBNo29.6 ± est.
Q48K default67.4 GBNo29.0 ± est.
Q432K71.9 GBNo25.5 ± est.
FP164K237.75 GBNo
FP168K default238.5 GBNo
FP1632K243.0 GBNo

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 neededRTX 4090 24GB VRAM
Q464.9 GB1.5 GB1 GB67.4 GB24 GB
FP16236.0 GB1.5 GB1 GB238.5 GB24 GB

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