Nvidia’s first Arm chips for Windows laptops are starting to look like a serious product line rather than a one-off experiment. Leaked details about the N1 and N1X suggest the company is preparing a broad push into Windows on Arm with a mix of CPU and Blackwell graphics hardware aimed at several laptop classes.
The most striking part of the leak is how clearly Nvidia appears to be separating performance tiers. According to VideoCardz, which cites internal Nvidia documents, the lineup includes at least four chip variants, spanning high-end machines as well as thinner and more power-conscious laptops.
A flagship part built for more demanding systems
At the top of the range sits N1X. This chip is said to share its core design with the GB10 processor used in DGX Spark, Nvidia’s desktop AI supercomputer. In its fully enabled configuration, N1X uses a 20-core CPU made up of 10 Cortex-X925 performance cores and 10 Cortex-A725 efficiency cores.
Its graphics side is also substantial. The leaked configuration points to a Blackwell 2.0 GPU with 48 Streaming Multiprocessors, which translates to 6,144 CUDA cores. A second N1X variant appears to reduce that to 18 CPU cores, split evenly between nine performance cores and nine efficiency cores, while the GPU drops to 40 SM or 5,120 CUDA cores.
Both N1X versions are said to sit in the 45W to 80W range. That figure covers the full chip package, including CPU and GPU, which places the part far above the typical ultra-low-power laptop silicon.
A separate N1 family for thinner laptops
Below N1X, Nvidia is reportedly lining up the N1 family for slimmer and more affordable systems. Two versions are mentioned there as well, and both are designed around lower power targets than the flagship tier.
The higher-spec N1 model reportedly combines an 8-core Cortex-X925 cluster with four Cortex-A725 efficiency cores, bringing the CPU total to 12 cores. For graphics, it carries a GPU with 20 SM, equal to 2,560 CUDA cores. The more modest version steps down to a 10-core CPU with seven performance cores and three efficiency cores, paired with a 16 SM GPU or 2,048 CUDA cores.
Those chips are said to operate in the 18W to 45W range. That makes the family a better fit for mainstream laptops that need a balance of battery life, thermals, and usable graphics capability.
Memory and storage targets also differ
The separation between N1X and N1 is not limited to compute and graphics. The leaks also describe different memory and storage ceilings for the two families, which reinforces Nvidia’s tiered approach.
N1X is said to support up to 128GB of LPDDR5X through a 16-channel interface. N1 is listed at up to 64GB of LPDDR5X using an 8-channel configuration. On the storage side, N1X is expected to support as many as three M.2 SSDs, while N1 tops out at two.
That division suggests a clear product strategy. N1X is being shaped as the more capable platform, while N1 appears aimed at thin laptops that still need strong graphics performance.
Windows on Arm gets a new challenger
The timing is notable because Windows on Arm is attracting more attention, and Qualcomm has been the most visible name in that space in recent years. Snapdragon X Elite helped intensify competition in thin-and-light laptops, but Nvidia’s entry would shift the conversation because of its strong graphics identity.
With Blackwell graphics built into an Arm chip for Windows laptops, Nvidia is not only offering a CPU alternative. It is also positioning the platform around graphics-heavy workloads, which could make it stand out in a market where the GPU story has usually been less central.
VideoCardz notes that at least one leaked slide is dated 2024, suggesting the project may have been in development for two years or more. That does not guarantee every variant will reach the market, since internal roadmaps can change and some models may be canceled before launch.
Even so, the number of versions in circulation points to a much broader plan than a single showcase chip. If Nvidia does bring N1 and N1X to an official announcement, the company could enter Windows on Arm with a platform designed to compete on efficiency, graphics, memory capacity, and device flexibility at the same time.
Source: www.gizmochina.com
