Wan 2.1 T2V (1.3B) VRAM Calculator

Official Wan 2.1 T2V (1.3B) model by Alibaba. Calculate hardware limits, context VRAM usage, and local inference requirements.

Diffusion / Video ModelDeveloper: Alibaba

Recommended GPU: RTX 3060 12GB / RTX 4060 8GB (480P)

Your GPU VRAM12 GB

DiT Backbone Precision

Output Resolution / Frames

CPU Offload (ComfyUI / LowVRAM)

Move text encoders & VAE to system RAM

Estimated Total VRAM

11.4GB

VRAM Usage Ratio95% (11.4 / 12 GB)

Memory Allocation Breakdown

DiT Backbone1.3 GB

Encoders & VAE6.7 GB

Latent Activation2.2 GB

CUDA Runtime1.2 GB

✓ Verified: Ready to Run

+0.6 GB headroom remaining. Inference will run smoothly without memory bottlenecks.