Nvidia N1X specs leak reveals powerful Arm chips for PCs and laptops

HARDWARE NEWS manhkbrady - about 1 hour ago

Detailed specifications for Nvidia’s upcoming Arm-based N1 processor family have surfaced online ahead of the company’s expected announcement. According to leaked internal documents obtained by VideoCardz, Nvidia is preparing several N1-series processors aimed at everything from premium performance laptops to more affordable and power-efficient devices.

Leading the lineup is the flagship N1X processor, which reportedly shares much of its architecture with the GB10 chip used in Nvidia’s DGX Spark AI desktop platform. This top-tier model is said to feature a 20-core CPU made up of ten Cortex-X925 performance cores and ten Cortex-A725 efficiency cores. On the graphics side, it packs a Blackwell 2.0 GPU with 48 Streaming Multiprocessors, equivalent to 6,144 CUDA cores. For comparison, that is the same CUDA core count as Nvidia’s desktop GeForce RTX 5070, although the N1X will operate within a significantly lower power envelope.

A second N1X variant is also reportedly in development. This model trims the CPU to 18 cores in a 9+9 configuration and pairs it with a 40-SM Blackwell GPU offering 5,120 CUDA cores. Both N1X processors are expected to run within a combined 45W to 80W power budget, covering both CPU and GPU resources within a single package.

Leaked Chip Specifications (Names Unconfirmed)	CPU ARM X925+A725	GPU Blackwell	TDP	PCIe	Memory
Nvidia N1X 675 (?)	10+10	48 SM (6144 CUDA Cores)	45-80W	12x PCIe 5 + 5x PCIe4	16-128GB LPDDR5X
Nvidia N1X 650 (?)	9+9	40 SM (5120 CUDA Cores)	45-80W	12x PCIe 5 + 5x PCIe4	16-128GB LPDDR5X
Nvidia N1 (Chip 1)	8+4	20 SM (2560 CUDA Cores)	18-45W	8x PCIe 5 + 3x PCIe4	8-64GB LPDDR5X
Nvidia N1 (Chip 2)	7+3	16 SM (2560 CUDA Cores)	18-45W	8x PCIe 5 + 3x PCIe4	8-64GB LPDDR5X

Further down the stack is the standard N1 series, designed for thinner and more mainstream laptops. One version reportedly combines eight Cortex-X925 performance cores and four Cortex-A725 efficiency cores with a 20-SM GPU delivering 2,560 CUDA cores. Interestingly, that matches the CUDA core count found on Nvidia’s GeForce RTX 5050. Another lower-end variant scales back to seven performance cores, three efficiency cores, and a 16-SM GPU with 2,048 CUDA cores. These chips are expected to operate within a more modest 18W to 45W range.

Close-up of an NVIDIA chip on a circuit board, focus on the chip with the NVIDIA logo.

The leak also highlights major differences in memory and storage support. N1X processors are said to support up to 128GB of LPDDR5X memory via a 16-channel interface, while standard N1 chips top out at 64GB through an 8-channel design. Storage support ranges from up to three M.2 SSDs on N1X systems to two on N1-based devices.

According to VideoCardz, some of the leaked documents date back to 2024, suggesting Nvidia has been developing the platform for several years. While not all listed models are guaranteed to reach the market, the leak provides the clearest look yet at Nvidia’s plans for Windows-on-Arm devices.

If the leaked specifications are accurate, Nvidia’s N1 family could become a major contender in the Windows-on-Arm market by combining Arm-based CPU technology with powerful Blackwell graphics in a highly integrated package.

As always, for the latest news on hardware launches and industry developments, be sure to follow our dedicated hardware coverage.