Stable Diffusion XL 1.0 on NVIDIA GeForce RTX 5090
NVIDIA GeForce RTX 5090 runs Stable Diffusion XL 1.0 excellently at FP16. This is a strong pairing.
Model Size
6.6B
Device VRAM
32 GB
Bandwidth
1792 GB/s
Quantizations Tested
1
Performance by Quantization
Each row shows Stable Diffusion XL 1.0 performance at a different quality level on NVIDIA GeForce RTX 5090.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| FP16 | — | — | ✓ Yes | Excellent | estimated |
Notes
FP16
~2-3 seconds per 1024x1024 image. Massive headroom for LoRA stacking.
About Stable Diffusion XL 1.0
Stable Diffusion XL 1.0 (6.6B) is a image gen model. The standard for local image generation. 1024x1024 base resolution. Massive LoRA/checkpoint ecosystem. Runs well on 8GB+ VRAM. VRAM usage varies by resolution and batch size — 6.5GB is for single 1024x1024 generation.
View all Stable Diffusion XL 1.0 hardware options →About NVIDIA GeForce RTX 5090
NVIDIA GeForce RTX 5090 has 32 GB at 1792 GB/s. Street price: $2,199.
See all models NVIDIA GeForce RTX 5090 can run →Builds with NVIDIA GeForce RTX 5090
Source: SD WebUI benchmarks (2026-03-01)
Data last updated: 2026-03-01