ComfyUI on Nvidia DGX Spark

NVIDIA just released NVIDIA DGX Spark. For those who don’t know this is a small form factor computer similar in size to a NUC or a Mac mini. What is special with this one is that both the CPU and GPU are in a single unit made by Nvidia and it has 128GB of unified memory that can be both ram and vram.

NVIDIA DGX Spark supports running ComfyUI extremely well. All the models I have tried work. It’s running Linux so to install ComfyUI on it you can just follow the regular NVIDIA instructions in our readme.

Performance wise it doesn’t beat a full desktop with a 5090 but it can run models and workloads that are too large for even high-end desktop systems.

Key features and technology callouts for DGX Spark platforms:

• NVIDIA GB10 Grace Blackwell Superchip

• 128 GB LPDDR5x Coherent Unified System Memory

• NVIDIA ConnectX-7 SmartNIC
  (we have two of them so we might try it in the future to see how well it works with the ComfyUI multi GPU stuff)

• NVIDIA AI Software Stack
  (comes with all NVIDIA CUDA, etc.. stuff already installed)

We will have benchmarks in a future blog post.