In a question and answer session jointly held with the CEOs of Intel and NVIDIA yesterday, NVIDIA CEO Jensen Huang confirmed that the current GB10 "Grace Blackwell" super chip is the basic design of the upcoming N1 notebook processor.
Huang Renxun said: "We also have a new Arm product called N1, which will be used in DGX Spark and many other types of product series. We are very much looking forward to the Arm roadmap, and this progress will not be affected by other factors."
This means that the GB10 super chip forms the design blueprint for the N1 processor. Based on the previously announced GB10 information, its performance level can be preliminarily speculated.
At the Hot Chips 2025 conference, NVIDIA introduced the GB10 chip in detail. The chip uses Arm CPU chips from MediaTek and is assembled with Blackwell GPU chips in a 2.5D package using TSMC’s (TSMC) 3nm process. The processor part implements 20 Arm v9.2 cores, divided into two ten-core clusters. Each cluster is equipped with a 16MB L3 shared cache (32MB in total), and each core also has an exclusive L2 cache. The memory system is a unified LPDDR5X-9400 architecture, using a 256-bit bus, supporting a maximum of 128GB, and a bandwidth of approximately 301GB/s.
For consumer notebook products, it remains to be seen whether the memory capacity will be retained. In addition, the CPU chipset integrates high-speed I/O control, and NVMe storage and peripherals are connected through PCIe 5.0 channels. The entire chip package has a typical thermal design power (TDP) of approximately 140 watts, supports multiple display outputs (including DisplayPort extended mode and HDMI 2.1a), and has security and virtualization features for professional-grade workloads.
