Can the Arc B580 12 GB run Lumina Image 2.0?
Yes. 16-bit fits on the Arc B580 12 GB with 5.0 GB to spare.
Take 16-bit (5.2 GB). In use it comes to about 7.0 GB, with 5.0 GB left over on 12 GB.
01What to download
| Part | File | Folder | Size | |
|---|---|---|---|---|
| Model | lumina_2_model_bf16.safetensors 16-bit · Comfy-Org/Lumina_Image_2.0_Repackaged | models/diffusion_models | 5.2 GB | Download → |
| Text encoder | gemma_2_2b_fp16.safetensors Gemma 2 2B FP16 · Comfy-Org/Lumina_Image_2.0_Repackaged | models/text_encoders | 5.2 GB | Download → |
| VAE | ae.safetensors FLUX.1 VAE (ae) · Comfy-Org/Lumina_Image_2.0_Repackaged | models/vae | 0.3 GB | Download → |
| Total download · keep about the same free on disk | 10.8 GB | |||
Sizes from Hugging Face, 2026-10-01.
02Every Lumina 2.0 file on 12 GB
| File | Size | Needed | On this card | Quality | Download |
|---|---|---|---|---|---|
| 16-bit ← SAFETENSORS · Comfy-Org | 5.2 GB | 7.0 GB | fits · 5.0 GB spare | the original weights | Hugging Face → |
| Q8_0 GGUF · calcuis | 2.8 GB | 4.6 GB | fits · 7.4 GB spare | practically identical to the original | Hugging Face → |
| Q6_K GGUF · calcuis | 2.1 GB | 3.9 GB | fits · 8.1 GB spare | very close to the original | Hugging Face → |
| Q5_K_M GGUF · calcuis | 1.8 GB | 3.6 GB | fits · 8.4 GB spare | close; small differences in fine detail | Hugging Face → |
| Q4_K_M GGUF · calcuis | 1.5 GB | 3.3 GB | fits · 8.7 GB spare | good; some loss in fine detail and text | Hugging Face → |
| Q3_K_M GGUF · calcuis | 1.1 GB | 2.9 GB | fits · 9.1 GB spare | noticeable loss of detail | Hugging Face → |
| Q2_K GGUF · calcuis | 1.1 GB | 2.9 GB | fits · 9.1 GB spare | heavy loss; a last resort | Hugging Face → |
“Needed” adds 1 GB of working memory for Lumina 2.0 and a 0.8 GB reserve. Sizes 2026-10-01.
03Measured and reported results
Nobody has sent measured numbers for this pair yet. If you run Lumina 2.0 on a Arc B580 12 GB, send your time per image and peak VRAM and it will appear here, credited.
04About the Arc B580 12 GB
Intel Arc GPUs run ComfyUI through PyTorch's native XPU support on Windows 11 and Linux. Memory works the same as on NVIDIA, so the fit verdicts apply. FP8 files save memory but give no speed-up, and some custom nodes are NVIDIA-only.
12 GB GDDR6 · 192-bit · 456 GB/s · Battlemage. Everything that runs on it →
05Questions
How much VRAM does Lumina 2.0 need?
Around 2.9 GB with the smallest file (Q2_K) and 4.6 GB with an 8-bit file (Q8_0). The full 16-bit file needs about 7.0 GB.
Which Lumina 2.0 file should I download for the Arc B580 12 GB?
16-bit (5.2 GB) from Comfy-Org/Lumina_Image_2.0_Repackaged.
How much do I need to download for Lumina 2.0 on the Arc B580 12 GB?
10.8 GB: lumina_2_model_bf16.safetensors, gemma_2_2b_fp16.safetensors, ae.safetensors.