Note that while manufacturers use a decimal system (1.3 GB = 1,300,000,000 bytes), Windows often uses binary, where the same data might appear as approximately 1.21 GiB .
The Wan 1.3B video generation model is optimized for consumer-grade GPUs, requiring about 8.19 GB of VRAM to run despite its efficient architectural size. (1.3 GB)
About 1.5 to 2 hours of Standard Definition (SD) streaming video. Note that while manufacturers use a decimal system (1