Unified Conditioning Merge (with timestep ranges)

By randyhaylorView on GitHub →

ComfyUI custom node: range-aware Concat/Combine/Average for CONDITIONING that correctly carries start_percent/end_percent across both inputs. Single unified node with mode dropdown, dynamic 1..N input slots, per-slot weights, and timestep-range intersection.

How much VRAM does Unified Conditioning Merge (with timestep ranges) require?

Direct Answer: The ComfyUI node Unified Conditioning Merge (with timestep ranges) requires a minimum base VRAM of 128MB and is optimized for GPUs with at least 4GB of VRAM. Low VRAM mode is fully supported for resource-constrained setups.

High (2-4GB)
Base VRAM:
128MB (0.1GB)
Recommended GPU:
4GB+ 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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Related Custom Nodes

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

0x-jerry/Rembg Background Removal Node for ComfyUI
by 0x-jerry128MB VRAM
A8R8 ComfyUI Nodes
by ramyma128MB VRAM
AI4ArtsEd Nodes
by joeriben128MB VRAM
AIFSH/ComfyUI-AuraSR
by AIFSH128MB VRAM

Frequently Asked Questions

How much VRAM does Unified Conditioning Merge (with timestep ranges) require?

Unified Conditioning Merge (with timestep ranges) requires a minimum of 128MB (0.1GB) of VRAM for base operation. For optimal performance, a GPU with at least 4GB of VRAM is recommended. This node supports low VRAM mode for resource-constrained setups.

Can I run Unified Conditioning Merge (with timestep ranges) on an RTX 3060, RTX 4070, or RTX 4090?

✅ RTX 3060 (12GB): Yes, fully compatible with 10.7GB headroom. ✅ RTX 4070 (12GB): Yes, fully compatible with 10.7GB headroom. ✅ RTX 4070 Ti (16GB): Yes, fully compatible with 14.3GB headroom. ✅ RTX 4090 (24GB): Yes, fully compatible with 21.5GB headroom

How can I reduce VRAM usage when running Unified Conditioning Merge (with timestep ranges)?

Unified Conditioning Merge (with timestep ranges) 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 Unified Conditioning Merge (with timestep ranges) in ComfyUI?

To install Unified Conditioning Merge (with timestep ranges): (1) Navigate to your ComfyUI/custom_nodes directory, (2) Clone the repository: git clone https://github.com/RandyHaylor/unified-conditioning-combine-with-timestep-range, (3) Install dependencies: pip install -r requirements.txt (if present), (4) Restart ComfyUI. Alternatively, use ComfyUI Manager for one-click installation.