Interactive Calculator

FLUX.1 Dev VRAM Budget

Find the exact quantization level (FP16, FP8, GGUF, NF4) that fits your physical GPU VRAM without Out of Memory crashes.

1. Select Your GPU VRAM

FP8 (Fast, Recommended)RecommendedFP8

Model weight: ~11.9GB VRAM

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Q4_K_M (Balanced)GGUF Q4_K_M

Model weight: ~7.2GB VRAM

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Q8_0 (High Quality)GGUF Q8_0

Model weight: ~13.8GB VRAM

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BF16 (Original)BF16

Model weight: ~23.8GB VRAM

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Rent a 24GB RTX 4090 on-demand starting at pennies/hour to avoid quantization loss entirely.