ComfyUI-RealESRGAN_Upscaler

By zentrocdotView on GitHub →

This node uses the RealESRGAN model from [a/xinntao](https://github.com/xinntao/Real-ESRGAN).

How much VRAM does ComfyUI-RealESRGAN_Upscaler require?

Direct Answer: The ComfyUI node ComfyUI-RealESRGAN_Upscaler requires a minimum base VRAM of 3072MB and is optimized for GPUs with at least 8GB of VRAM. Low VRAM mode is fully supported for resource-constrained setups.

Very High (4-8GB)
Base VRAM:
3072MB (3.0GB)
Recommended GPU:
8GB+ VRAM
Low VRAM Mode:
✓ Supported
Estimation Confidence:
MEDIUM

Interactive VRAM Compatibility Estimator

Estimated Total VRAM: 3.00 GBTarget: 8 GB
✅ Comfortable Fit

Your GPU has plenty of headroom. You can run this node safely with your active configurations!

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🚀 Deploy on Vast.ai

Deploy on Cloud GPUs

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🚀 Deploy on RunPod

What Python packages are required for ComfyUI-RealESRGAN_Upscaler?

Direct Answer: Running ComfyUI-RealESRGAN_Upscaler requires installing the following Python package dependencies: basicsr>=1.4.2, numpy, opencv-python, pillow, realesrgan, requests, torch>=1.7, torchvision. This node specifically requires PyTorch version 1.7 or newer.

requirements.txt
basicsr>=1.4.2
numpy
opencv-python
pillow
realesrgan
requests
torch>=1.7
torchvision

Interactive Setup & Dependency Resolver

Operating System:
Environment Type:
Run this terminal command in your ComfyUI root folder:
# Loading command...

Special Environment Requirements:

Requires PyTorch version 1.7+.

To update PyTorch for your selected setup, run:
# Loading PyTorch command...

Related Custom Nodes

The following custom nodes run in the same PyTorch / CUDA environment and share similar categories or workflows:

ComfyUI-IO-Helpers
by austinbrown34256MB VRAM
ComfyUI-Simple_Image_To_Prompt
by zentrocdot256MB VRAM
AMD Video Upscaler
by yasei-no-otoko3.0GB VRAM
Bit Depth Enhancer
by subraoul128MB VRAM
ComfyUI Bringing Old Photos Back to Life
by cdb-boop128MB VRAM

Frequently Asked Questions

How much VRAM does ComfyUI-RealESRGAN_Upscaler require?

ComfyUI-RealESRGAN_Upscaler requires a minimum of 3072MB (3.0GB) of VRAM for base operation. For optimal performance, a GPU with at least 8GB of VRAM is recommended. This node supports low VRAM mode for resource-constrained setups.

Can I run ComfyUI-RealESRGAN_Upscaler on an RTX 3060, RTX 4070, or RTX 4090?

✅ RTX 3060 (12GB): Yes, fully compatible with 7.8GB headroom. ✅ RTX 4070 (12GB): Yes, fully compatible with 7.8GB headroom. ✅ RTX 4070 Ti (16GB): Yes, fully compatible with 11.4GB headroom. ✅ RTX 4090 (24GB): Yes, fully compatible with 18.6GB headroom

What PyTorch version does ComfyUI-RealESRGAN_Upscaler need?

ComfyUI-RealESRGAN_Upscaler requires the following PyTorch-related packages: torch>=1.7, torchvision. Ensure your ComfyUI environment has these installed. Ensure your PyTorch installation matches your CUDA version (use torch.version.cuda to check).

What Python packages are required for ComfyUI-RealESRGAN_Upscaler?

To run ComfyUI-RealESRGAN_Upscaler, you need to install: basicsr>=1.4.2, numpy, opencv-python, pillow, realesrgan, requests, torch>=1.7, torchvision. You can install these using pip or add them to your requirements.txt file.

How can I reduce VRAM usage when running ComfyUI-RealESRGAN_Upscaler?

ComfyUI-RealESRGAN_Upscaler supports low VRAM mode. To reduce memory usage: (1) Enable --lowvram or --medvram flags in ComfyUI, (2) Reduce batch size to 1, (3) Use fp16 or fp8 precision if supported, (4) Close other GPU applications.

How do I install ComfyUI-RealESRGAN_Upscaler in ComfyUI?

To install ComfyUI-RealESRGAN_Upscaler: (1) Navigate to your ComfyUI/custom_nodes directory, (2) Clone the repository: git clone https://github.com/zentrocdot/ComfyUI-RealESRGAN_Upscaler, (3) Install dependencies: pip install -r requirements.txt (if present), (4) Restart ComfyUI. Alternatively, use ComfyUI Manager for one-click installation.