ComfyUI Extension: comfyui-rtx4090-nodes

Authored by JosephOIbrahim

Created

Updated

4 stars

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

High-performance ComfyUI nodes optimized for RTX 4090: batch processing, memory management, GPU monitoring

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Custom Nodes (0)

    README

    ComfyUI RTX 4090 Nodes

    High-performance optimization nodes specifically tuned for NVIDIA RTX 4090 GPUs.

    Installation

    cd ComfyUI/custom_nodes
git clone https://github.com/joe002/comfyui-rtx4090-nodes.git

    6 Nodes

    | Node | Purpose | |------|---------| | BatchImageProcessor | Process multiple images efficiently | | BatchLatentProcessor | Batch latent space operations | | RTX4090Optimizer | Apply GPU-specific optimizations | | MemoryManager | VRAM management and cleanup | | GPUMonitor | Real-time GPU metrics | | TensorRTAutoConverter | Model conversion for speed |

    RTX 4090 Optimizer

    Enables hardware-specific optimizations:

    • TF32: 2x speedup on matrix operations
    • cuDNN Benchmark: Auto-selects optimal kernels
    • AMP: Mixed precision for memory efficiency
    • Thread Tuning: Optimized for high-core-count CPUs
    Default settings for RTX 4090 + Threadripper:
├─ TF32: Enabled
├─ cuDNN Benchmark: Enabled
├─ Memory Fraction: 95%
└─ CPU Threads: 48

    Memory Manager

    Actions:

    • clear_cache: Standard VRAM cleanup
    • optimize: Conditional cleanup based on threshold
    • report: Detailed memory breakdown
    • emergency_clear: Aggressive cleanup for OOM recovery

    GPU Monitor

    Real-time metrics via nvidia-smi:

    • GPU Utilization (%)
    • VRAM Usage (%)
    • Temperature (°C)
    • Power Draw (W)

    TensorRT Converter

    Convert models for faster inference:

    • fp16: 40-60% speedup
    • int8: 60-80% speedup (requires calibration)
    • fp32: 20-30% speedup

    Requirements

    • ComfyUI
    • torch >= 2.0.0
    • NVIDIA RTX 4090 (or compatible GPU)
    • nvidia-smi (for GPUMonitor)

    License

    MIT License

    Author

    Joseph Ibrahim - VFX Lighting TD

    Run ComfyUI workflows without the setup

    No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

    Learn more