Q2 to F16 32GB Test: HIDream GGUF ComfyUI Workflow - The Real Flux Killer? (Low VRAM + Upscale)

Want to run Hydream in ComfyUI on low VRAM systems? In this video, I’ll walk you through my complete Hydream ComfyUI workflow — including native node setup, model conversion, performance tuning, and high-quality upscaling using Stable Diffusion.

Learn how to install and run Hydream in ComfyUI with native node support and low VRAM optimization. I’ll show you a step-by-step setup, performance tests, and my full ComfyUI workflow using Stable Diffusion with text-to-image generation and advanced upscaling.Want to run Hydream in ComfyUI on low VRAM systems? In this video, I’ll walk you through my complete Hydream ComfyUI workflow — including native node setup, model conversion, performance tuning, and high-quality upscaling. Whether you're using FP8, FP16, or GGUF, this guide has you covered!

Learn how to install and run Hydream in ComfyUI with native node support and low VRAM optimization. I’ll show you a step-by-step setup, performance tests, and my full workflow using Stable Diffusion with text-to-image generation and advanced upscaling.

What You'll Learn:

Fast Hydream installation in ComfyUI (native nodes method)

Picking the right model: FP8, FP16, or GGUF

Setting up the text encoder (LLaMA 3.1 8B + T5XL)

My full text-to-image workflow with upscaling (SD Ultimate Upscale)

VRAM-saving tips for low-spec builds

Why image-to-image isn't working yet (and what to use instead)

Download Links & Workflow File:
Get the ready-to-use ComfyUI workflow JSON and model files here:
https://comfyuiblog.com/hidream-advan...
For Flux Users:
If you already use Flux, you can reuse your VAE and some CLIP files—I’ll show you exactly which ones!

Key Takeaways:

Hydream in ComfyUI supports strong prompt adherence

Image-to-image not working yet (text-to-image works great)

Upscaling significantly boosts detail (tested with Ultimate Upscale)

Best samplers: LCM, UniPC, DPM++

#Hydream #ComfyUI #AIGeneratedArt #StableDiffusion