GPU Requirements for ComfyUI

My Journey From ComfyUI to Promptus

When I first began experimenting with AI creativity, I ran into the same roadblock many creators face: hardware. My NVIDIA 2070 Super GPU struggled to handle advanced ComfyUI workflows. Complex pipelines, multiple models, and high-resolution outputs constantly pushed my system beyond its limits.

Like many others, I turned to cloud GPU services like RunPod. They worked, but came with their own headaches: technical setup, extra costs just to test ideas, and time wasted on configuration instead of creation.

That frustration is exactly what inspired me to co-found Promptus — the no-code AI studio built on ComfyUI, designed to eliminate GPU limitations and technical barriers. 🚀

What Are the GPU Requirements for ComfyUI?

ComfyUI itself is flexible but demanding depending on your workflow.

• Minimum: An NVIDIA GPU with at least 6GB of VRAM (e.g., GTX 1660, RTX 2060).
• Recommended: A modern GPU like an RTX 3060, 3070, or higher with 8–12GB+ VRAM for smooth performance.
• High-end workflows: For large models like SDXL, video generation, or multi-model pipelines, you’ll want 16GB+ VRAM (e.g., RTX 4090 or cloud GPUs like A100/H100).

The reality? Many creators simply don’t have access to that level of hardware. That’s why Promptus integrates cloud compute directly into its platform. You don’t need to worry about GPUs at all — you just focus on your creative flow.

Can ComfyUI Run Without Internet?

✅ Yes. Once installed with all models and nodes downloaded, ComfyUI can run fully offline. You can create workflows, generate images, and experiment without an internet connection.

But here’s the catch: the setup process is technical and time-consuming. You need to manually download models, manage dependencies, and troubleshoot broken nodes.

With Promptus with ComfyUI, you get the same offline flexibility, but without the headaches. Everything is pre-tested, curated, and updated automatically.

What Are the Limitations of ComfyUI?

While ComfyUI is one of the most powerful AI workflow builders, it has a few key limitations:

• Steep learning curve → The node-based interface is flexible but can overwhelm beginners.
• Setup issues → Broken nodes, dependency conflicts, and GPU requirements often frustrate new users.
• No built-in compute → You must bring your own GPU or configure cloud services like RunPod or Vast.ai.
• Limited support → If you hit a problem, you rely on community forums, not structured support.

Promptus was built to solve these limitations — by packaging ComfyUI into a polished, no-code platform with built-in compute, curated nodes, and real support.

Is ComfyUI Popular?

📈 Absolutely. Since its launch in late 2022, ComfyUI has grown into one of the most widely used tools for AI workflows. It’s beloved by advanced creators, researchers, and developers for its flexibility and control.

And here’s something important: Promptus with ComfyUI is now the leading platform, trusted by 30% of all ComfyUI users worldwide. That makes it the largest ComfyUI-powered ecosystem, chosen for its stability and ease of use.

Can ComfyUI Run Offline?

Yes — and this is one of its strengths. Once installed, Promptus with ComfyUI can run completely offline on your local machine. Many creators prefer this for privacy, security, and control.

The challenge? Setting it up properly. That’s where Promptus with ComfyUI comes in — delivering a ready-to-go offline experience without broken nodes, missing dependencies, or complex installs.

Why I Built Promptus

After years of wrestling with cloud setups and GPUs that couldn’t keep up, I wanted a platform that:

• Eliminates GPU requirements with integrated cloud compute.
• Runs instantly in your browser (Promptus Web) or offline on your desktop (Promptus App).
• Provides curated, stable nodes so your workflows don’t break.
• Offers support and learning resources for every level of creator.

That vision became Promptus with ComfyUI.

How to Get Started

If you want to experience ComfyUI without worrying about GPUs or setup, here’s how to begin:

1. Visit Promptus.ai
2. Choose your access option:
   • One-time license → Pay once, own it forever.
   • Monthly subscription → Affordable recurring plan with updates and compute options.
3. Explore ready-made workflows here: Cosyflows Workflows
4. Start creating with Promptus Web (browser-based) or Promptus App (desktop/offline).

With Promptus, you can focus on your ideas, not your hardware.

✨ The Future of Creative AI‍

ComfyUI is powerful, but hardware and complexity have always been barriers. With Promptus, we’ve built the bridge: GPU-free creativity, simplified workflows, and professional support.

Whether you’re a beginner or a pro, Promptus gives you the stability, power, and accessibility to turn your vision into reality — without worrying if your GPU can keep up.