BFLFLUX.1 Dev on NVIDIA GeForce RTX 4070 Ti 12GB
RTX 4070 Ti 12GB cannot run FLUX.1 Dev. 12 GB VRAM is insufficient at any quantization level.
Model Size
12B
Device VRAM
12 GB
Bandwidth
504 GB/s
Quantization
Q8_0
Performance by Quantization
OwnRig currently has one published compatibility entry for FLUX.1 Dev on NVIDIA GeForce RTX 4070 Ti 12GB at Q8_0. This pairing has limitations — check the rating and notes below.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| Q8_0 | – | – | ✗ Offload | Not viable | estimated |
Notes
Q8_0
12B image model. Q8_0 needs 13GB. Q4_K_M (7.2GB) would fit but quality loss significant.
About FLUX.1 Dev
FLUX.1 Dev (12B) is a image gen model. State-of-the-art image generation. Significantly better prompt adherence and image quality than SDXL. 12B parameter transformer model (not diffusion UNet). FP16 requires 24GB VRAM, but Q4 quantization brings it to 8GB GPUs. Non-commercial license.
View all FLUX.1 Dev hardware options →About NVIDIA GeForce RTX 4070 Ti 12GB
NVIDIA GeForce RTX 4070 Ti 12GB has 12 GB at 504 GB/s. Street price: $749.
See all models NVIDIA GeForce RTX 4070 Ti 12GB can run →Estimate method: Q8_0 13GB exceeds 12GB. FP16 23.8GB far exceeds. Reference hardware source: github.com (2026-03-15)
Performance varies by driver version, inference engine, quantization method, context length, and system configuration. Figures shown are estimates based on community benchmarks and may not reflect your exact setup. Product names are trademarks of their respective owners. OwnRig is independent and not affiliated with any hardware or AI model provider.