Image models · Stability AI
Stable Diffusion 3.5 Large
- Backbone
- 8.1B
- Native output
- 1024×1024
- Default steps
- 28
- License
- stabilityai-community
- Released
- 2024-10
How to run it
Quantized files · GGUF for ComfyUI
Smaller GGUF versions for ComfyUI (with the ComfyUI-GGUF node). No sign-in needed; the model’s license still applies.
huggingface.co/city96/stable-diffusion-3.5-large-gguf (opens in a new tab)
Original weights · Hugging Face
Full-precision files from Stability AI, for fine-tuning, vLLM, Transformers, Diffusers or ComfyUI.
huggingface.co/stabilityai/stable-diffusion-3.5-large (opens in a new tab)
Official repo · GitHub
Reference code, inference scripts and docs from Stability AI. The weights themselves download from Hugging Face.
github.com/Stability-AI/sd3.5 (opens in a new tab)
git clone https://github.com/Stability-AI/sd3.5Memory needed
Peak GPU memory at the native output size. Offloading moves the text encoder, or the whole pipeline, to system RAM between steps.
| Precision | Everything on GPU | Text encoder offloaded | Sequential offload | Download |
|---|---|---|---|---|
FP16 | 30.0 GB | 18.8 GB | 8.1 GB | Original weights (opens in a new tab) |
FP8 | 16.3 GB | 10.7 GB | 5.3 GB | Original weights (opens in a new tab) |
Q8 GGUF | 16.8 GB | 11.3 GB | 5.5 GB | GGUF (opens in a new tab) |
Q4 GGUF | 13.0 GB | 7.5 GB | 4.1 GB | GGUF (opens in a new tab) |
Components
- Backbone: 8.1B
- VAE: 0.084B
- CLIP-L: 0.123B
- CLIP-G: 0.695B
- T5-XXL: 4.76B
Best hardware for Stable Diffusion 3.5 Large
The least expensive GPU in our catalog that runs it without offloading is the Intel Arc A380 (launch price $139) at FP8.
| Grade · points | Hardware | Precision | Memory | Time per output | Fit |
|---|---|---|---|---|---|
| 84 ptsGreat (A) · 84 of 100 points: Model quality 29.1/45, Memory fit 25.0/25, Speed 15.0/15, Memory use 15.0/15 | NVIDIA GeForce RTX 4090 | FP8 | 16.3 GB / 24.0 GB | 9.9 s | Runs well |
| 83 ptsGreat (A) · 83 of 100 points: Model quality 29.1/45, Memory fit 25.0/25, Speed 14.3/15, Memory use 15.0/15 | AMD Radeon RX 7900 XTX | FP8 | 16.3 GB / 24.0 GB | 11 s | Runs well |
| 80 ptsGreat (A) · 80 of 100 points: Model quality 29.1/45, Memory fit 25.0/25, Speed 15.0/15, Memory use 11.7/15 | NVIDIA GeForce RTX 5090 | FP8 | 16.3 GB / 32.0 GB | 8.3 s | Runs well |
| 80 ptsGreat (A) · 80 of 100 points: Model quality 29.1/45, Memory fit 25.0/25, Speed 11.0/15, Memory use 15.0/15 | NVIDIA GeForce RTX 3090 | FP8 | 16.3 GB / 24.0 GB | 19 s | Runs well |
| 78 ptsGreat (A) · 78 of 100 points: Model quality 27.6/45, Memory fit 25.0/25, Speed 11.3/15, Memory use 15.0/15 | AMD Radeon RX 9070 XT | Q4 GGUF | 13.0 GB / 16.0 GB | 18 s | Runs well |
| 78 ptsGreat (A) · 78 of 100 points: Model quality 27.6/45, Memory fit 25.0/25, Speed 11.3/15, Memory use 15.0/15 | NVIDIA GeForce RTX 5080 | Q4 GGUF | 13.0 GB / 16.0 GB | 18 s | Runs well |
| 78 ptsGreat (A) · 78 of 100 points: Model quality 27.6/45, Memory fit 25.0/25, Speed 11.0/15, Memory use 15.0/15 | NVIDIA GeForce RTX 4080 SUPER | Q4 GGUF | 13.0 GB / 16.0 GB | 19 s | Runs well |
| 77 ptsGreat (A) · 77 of 100 points: Model quality 27.6/45, Memory fit 25.0/25, Speed 10.3/15, Memory use 15.0/15 | NVIDIA GeForce RTX 4070 Ti SUPER | Q4 GGUF | 13.0 GB / 16.0 GB | 21 s | Runs well |
| 77 ptsGreat (A) · 77 of 100 points: Model quality 27.6/45, Memory fit 25.0/25, Speed 10.3/15, Memory use 15.0/15 | NVIDIA GeForce RTX 5070 Ti | Q4 GGUF | 13.0 GB / 16.0 GB | 21 s | Runs well |
| 76 ptsGreat (A) · 76 of 100 points: Model quality 29.7/45, Memory fit 25.0/25, Speed 15.0/15, Memory use 7.2/15 | NVIDIA RTX PRO 6000 Blackwell | FP16 | 30.0 GB / 96.0 GB | 8.1 s | Runs well |
Estimates come from published hardware specs and our open formulas, not from running the model on your machine. Real speed varies with runtime, drivers and settings. Numbers marked “Measured” come from a linked benchmark.