One silicon, three labels: we unravel the mess between RTX Spark, the code name N1X and the GB10 of the DGX Spark

Since the announcement of RTX Spark, there has been a lot of talk about the chip without ever really seeing it.

Spotted on the stands of Nvidia partners at Computex and relayed by VideoCardz, the first images of the silicon that will equip future laptops and mini-PCs are circulating, and they are rich in lessons. For those who can read the small lines engraved on the component, there is even enough to confirm several rumors.

Two N1X chips, the 650 and the 675

First observation, there are two versions of the chip, as the spec leaks relayed by VideoCardz suggested. We can see on one side a model marked GSE1-675, on the other a GSE1-650.

The 675 corresponds to the full version, that of the high-end RTX Spark, with its 20-core processor and its GPU of 6144 CUDA cores.

The 650 is the version one step below, with an 18-core processor and a GPU reduced to 5120 CUDA cores.

Two chips, therefore, to cover several range and price levels, which fits perfectly with the strategy already observed in all the expected laptops and mini-PCs.

On one of the images, we also read the words “QUAL SAMPLE”, for qualification sample. In other words, we are looking at pre-series, validation chips and not yet mass production, which is consistent with marketing announced for the fall. Nothing out of the ordinary at this point, but it's a good reminder that these images show advanced prototypes, not the finished product you'll buy in stores.

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A manufacturing date which supports the redesign thesis

This is the most interesting detail. The N1X chips photographed carry the code 2542, which is week 42 of 2025, i.e. October 2025.

This relatively recent date supports a thesis that has been circulating for a while, documented in particular by Tom’s Hardware and SemiAccurate: that of a redesign of the chip.

As a reminder, the N1X has been awaited for years, and several postponements have punctuated its history. Manufacturing dated October 2025 suggests that Nvidia continued to evolve its chip late, which would partly explain why this chip, announced as the fruit of three years of work with Microsoft, is only arriving on the market now.

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This N1X chip, remember, is the same silicon as the GB10 which equips Nvidia's DGX Spark, simply available for the general public under Windows. If the subject of the three names of this chip still escapes you, between RTX Spark, N1X and GB10, there is something to get lost. The essential thing to remember: a single technical base, several labels and now, as we can see, several physical variants.

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Beware of confusion around another chip

A word, finally, about the little mess that is shaking up the networks. In parallel with the N1X chips, other images are circulating showing an Nvidia component of similar appearance, but marked differently, with the references E7A227 and E7A214, and above all a much earlier date, 2443, i.e. week 43 of 2024.

Many took it for the general public N1X, wrongly in all likelihood. Its manufacturing date, a year earlier, and its distinct marking point instead to another silicon, undoubtedly an earlier prototype or a different chip from the Grace Blackwell family.

In short, be wary of photos that run on X: not all rectangular Nvidia chips are RTX Spark. The real chips for future laptops are the N1X 650 and 675 dated October 2025.

The rest is either prototype or confusion. The manufacturers will lift the veil on their machines, expected this fall, and we will then know more about this Arm chip which challenges Intel, AMD, Qualcomm and Apple.

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