Windows PCs gain RTX Spark systems for larger local AI workloads
Microsoft opened preorders for Surface Laptop Ultra and partner Windows PCs built around NVIDIA RTX Spark, with up to 128 GB unified memory and stated support for local models above 120 billion parameters. Systems begin shipping 16 October; a developer box follows in November.
Why it matters: Large unified memory changes which private inference and agent workloads can remain on a personal workstation, but platform routing, thermal behavior and application support will determine whether the hardware replaces cloud calls in practice.