Stable Diffusion 3.5 Large on NVIDIA GeForce RTX 3060 12GB
Yes — RTX 3060 12GB handles Stable Diffusion 3.5 Large well at Q8_0 — ~15s first response. Solid daily-driver performance on 12 GB VRAM.
Model Size
8.1B
Device VRAM
12 GB
Bandwidth
360 GB/s
Quantization
Q8_0
Performance by Quantization
OwnRig currently has one published compatibility entry for Stable Diffusion 3.5 Large on NVIDIA GeForce RTX 3060 12GB at Q8_0. This is the best supported pairing we can stand behind today.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| Q8_0 | – | 15000ms | ✓ Yes | Good | estimated |
Notes
Q8_0
Q8 variant (9GB) fits in 12GB. FP16 at 12.5GB doesn't fit. Image generation takes ~15s per image.
About Stable Diffusion 3.5 Large
Stable Diffusion 3.5 Large (8.1B) is a image gen model. Latest Stable Diffusion architecture with significantly improved prompt adherence, typography, and composition over SDXL. Higher VRAM requirement (12GB+ at FP16) but produces noticeably better images. The current standard for local image generation.
View all Stable Diffusion 3.5 Large hardware options →About NVIDIA GeForce RTX 3060 12GB
NVIDIA GeForce RTX 3060 12GB has 12 GB at 360 GB/s. Street price: $269.
See all models NVIDIA GeForce RTX 3060 12GB can run →Builds with NVIDIA GeForce RTX 3060 12GB
Estimate method: Performance estimates based on model size and device bandwidth. 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.