Benchmarking ComfyUI VRAM: Finding the Sweet Spot for Wan/SCAIL-2 on 16GB GPUs
MoreColors185 · reddit · 2026-08-02
An RTX 4070 Ti Super (16GB VRAM) user shared an analytical approach to measuring VRAM usage for Wan/SCAIL-2 video generation workflows in ComfyUI.
The author breaks down VRAM into a baseline (model weights, encoders) and a dynamic portion (resolution, frame count). They propose running 6-9 controlled benchmark tests to derive a practical formula (e.g., VRAM = baseline + f(width, height, frames)). The ultimate goal is to find the optimal sweet spot balancing video quality, generation time, and VRAM limits on a 16GB card.
Related event: Developer Proposes VRAM Calculation Formula for ComfyUI Video Generation(2 posts)→
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