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)→
More from Infra
- China's AI boom drives up to 660% profit surges for domestic chip firms; GPU maker MetaX turns profitable — pstAsiatech · 2026-10-16
- When Does an Agent Actually Need an API Gateway? Reddit Weighs Direct Calls vs. Unified Endpoints — TurbulentStiffness · 2026-10-16
- Taiwan to build $4B AI manufacturing complex in Texas to back Nvidia and TSMC — Polymarket · 2026-10-16
- When the KV Cache Is Slower Than the GPU: Remote KV Tiers Backfire in Production — MultiverseComputingCAI · 2026-10-16
- GitHub rewrote the 800k-line Copilot runtime in Rust using AI agents, cutting CPU and memory by over 90% — bibryam · 2026-10-16
- NVIDIA quietly delists the entry-level RTX 5050 from its marketplace, following the RTX 5090 — chemist_slime · 2026-10-16