Stable Diffusion 3 Medium on NVIDIA GeForce RTX 4070 Ti 12GB
NVIDIA GeForce RTX 4070 Ti 12GB runs Stable Diffusion 3 Medium excellently at FP16. This is a strong pairing.
Model Size
2B
Device VRAM
12 GB
Bandwidth
504 GB/s
Quantizations Tested
1
Performance by Quantization
Each row shows Stable Diffusion 3 Medium performance at a different quality level on NVIDIA GeForce RTX 4070 Ti 12GB.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| FP16 | — | — | ✓ Yes | Excellent | estimated |
Notes
FP16
~4-6 seconds per image. Plenty of headroom.
About Stable Diffusion 3 Medium
Stable Diffusion 3 Medium (2B) is a image gen model. Stability AI's SD3 medium model for high-quality image generation.
View all Stable Diffusion 3 Medium 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 →Source: SD3 Medium FP16 ~5GB fits with 7GB headroom (2026-03-15)
Data last updated: 2026-03-15