Can NVIDIA GeForce RTX 4080 run HunyuanVideo?
13B parameter Video Gen model on 16GB GDDR6X
VRAM Requirements
HunyuanVideo is a 13B parameter model. At full precision (FP16), it requires 40GB of VRAM. Your NVIDIA GeForce RTX 4080 has 16GB, so you'll need to quantize it to 4-bit (Q4) to fit.
Maximum quality, no quantization
Near-lossless, ~50% size reduction
Good quality, ~75% size reduction
Recommended system RAM: 32GB DDR5 (2x GPU VRAM minimum for model overflow)
What This Means in Practice
At 4-bit precision, HunyuanVideo fits in NVIDIA GeForce RTX 4080's VRAM but video quality may show artifacts, especially in motion consistency and fine details. Generation times will be longer. Usable for experimentation, but a GPU with more VRAM will produce noticeably better results.
NVIDIA GeForce RTX 4080 Specs
Other GPUs That Run HunyuanVideo
Other Video Gen Models on NVIDIA GeForce RTX 4080
About HunyuanVideo
Tencent's text-to-video model. Generates high-quality 5-10 second video clips. One of the best open-source video generators available. Needs significant VRAM — 24GB+ recommended.