When talking about laptops with 128GB of unified memory, conversations naturally gravitate towards local LLMs. It’s the pretty obvious pitch when it comes to Nvidia’s RTX Spark, after all, given its close relation to the DGX Spark’s GB10. What’s more, being able to run Qwen3.8 Flash Next in a device that you can carry around is pretty incredible. I did exactly that with the HP OmniBook Ultra 16, but I also wanted to see what you can do with all that memory if you aren’t running local AI.