Stable Diffusion 3.5 Large on AMD Radeon Pro W7900
AMD Radeon Pro W7900 runs Stable Diffusion 3.5 Large at FP16 — ~20s first response. Usable on 48 GB VRAM — see full quantization options below.
Model Size
8.1B
Device VRAM
48 GB
Bandwidth
864 GB/s
Quantization
FP16
Performance by Quantization
OwnRig currently has one published compatibility entry for Stable Diffusion 3.5 Large on AMD Radeon Pro W7900 at FP16. This is the best supported pairing we can stand behind today.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| FP16 | – | 20000ms | ✓ Yes | Acceptable | estimated |
Notes
FP16
AMD workstation card with the best ROCm support in this dataset; best AMD option for larger models. FP16 fits in VRAM on this card.
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 AMD Radeon Pro W7900
AMD Radeon Pro W7900 has 48 GB at 864 GB/s. Street price: $3,299.
See all models AMD Radeon Pro W7900 can run →Estimate method: Estimated from m4-pro-48gb compatibility patterns plus ROCm/Vulkan adjustments. Reference hardware source: github.com (2026-03-26)
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.