RigFit › Models › FLUX.1 [dev]

Best GPU for FLUX.1 [dev] (2026)

The cheapest GPU that runs FLUX.1 [dev] at 4-bit (Q4) is the Arc B580 (12 GB), currently about $330 (new, VideoCardPrices (Newegg), 2026-11-12). FLUX.1 [dev] needs roughly 9.9 GB of VRAM at Q4. Don't want to buy? Rent a GeForce RTX 3060 12GB that fits it from $0.056/hr (Vast.ai).

Prices updated Nov 12, 2026 · model on Hugging Face

Cheapest card that fits, by quantization

QuantVRAM neededCheapest GPU that fitsPriceSpeedShop
Q49.9 GBArc B58012 GB$330 newVideoCardPrices (Newegg) · 2026-11-12n/aCheck pricenew · Amazonor used on eBay
Q815.0 GBArc A770 16GB16 GB$342 usedGPU Sold · 2026-11-10n/aCheck priceused · eBayor new on Amazon
FP1625.4 GBRTX A600048 GBor rent one from $0.33/hrRunpod$4,470 usedGPU Sold · 2026-11-10n/aCheck priceused · eBayor new on Amazon

Image/video speed is compute-bound and not estimated. 1024x1024, batch 1. Counts the 12B diffusion transformer + VAE. The T5-XXL/CLIP text encoders (~9.5 GB at FP16) are assumed offloaded to system RAM after encoding, as ComfyUI/Forge do on low-VRAM cards; keeping them resident needs ~5 GB more at FP8. Context for text models: 8K tokens. Model specs: 11.9B parameters (from Hugging Face metadata, fetched 2026-10-18).

Or rent a GPU for FLUX.1 [dev]

QuantVRAM neededCheapest rentable GPU that fitsPriceEst. speed*
Q49.9 GBGeForce RTX 3060 12GB12 GB$0.056/hrVast.ai · marketplacen/aRent
Q815.0 GBGeForce RTX 5060 Ti 16GB16 GB$0.095/hrVast.ai · marketplacen/aRent
FP1625.4 GBRTX A600048 GB$0.33/hrRunpod · Community Cloudn/aRent

Cheapest on-demand hourly prices found 2026-11-12 05:55 ET. Marketplace prices move by the minute. Compare all rental prices and the buy-vs-rent break-even →

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FAQ

How much VRAM does FLUX.1 [dev] need?

About 10 GB at Q4, 15 GB at Q8, 25 GB at FP16 (1024x1024, batch 1. Counts the 12B diffusion transformer + VAE. The T5-XXL/CLIP text encoders (~9.5 GB at FP16) are assumed offloaded to system RAM after encoding, as ComfyUI/Forge do on low-VRAM cards; keeping them resident needs ~5 GB more at FP8.)

What is the best budget GPU for FLUX.1 [dev]?

Arc B580 is the cheapest card in our tracker that fits it at Q4.

Can I rent a GPU to run FLUX.1 [dev] instead?

Yes. The cheapest single rented GPU with enough VRAM for Q4 we found was a GeForce RTX 3060 12GB at $0.06/hour on Vast.ai (2026-11-12). Marketplace prices change constantly.

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