ComfyUI says CUDA out of memory even when VRAM is free. Here is how to tell if the GPU is really the problem

Published on HivePostify by @popularai · Fri Aug 28 2026

ComfyUI says “CUDA out of memory” while your GPU still has free VRAM? The obvious diagnosis may be wrong. Here’s how to find the real cause before you blame your hardware.

[Read the full article on Popular AI](https://www.popularai.org/p/comfyui-cuda-oom-free-vram)