BFLFLUX.1 Dev on NVIDIA RTX 4070 Laptop (80-115W)
RTX 4070 Laptop (80-115W) runs FLUX.1 Dev at Q4_K_M due to limited memory bandwidth. Slow but functional — see all options below.
Model Size
12B
Device VRAM
8 GB
Bandwidth
256 GB/s
Quantization
Q4_K_M
Performance by Quantization
OwnRig currently has one published compatibility entry for FLUX.1 Dev on NVIDIA RTX 4070 Laptop (80-115W) at Q4_K_M. This is the best supported pairing we can stand behind today.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| Q4_K_M | – | – | ✓ Yes | Marginal | estimated |
Notes
Q4_K_M
Sustained post-thermal-throttle performance. TDP-capped laptop variant.
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 RTX 4070 Laptop (80-115W)
NVIDIA RTX 4070 Laptop (80-115W) has 8 GB at 256 GB/s. Street price: $0.
See all models NVIDIA RTX 4070 Laptop (80-115W) can run →Estimate method: Community laptop benchmarks and thermal throttle reports. Reference hardware source: reddit.com (2026-03-14)
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.