The mobile computing market is preparing for major changes. At the GTC Taipei exhibition, NVIDIA, in collaboration with Microsoft, unveiled RTX Spark — a fundamentally new Windows platform built on the Grace Blackwell superchip. This is the first full-fledged ARM chip for laptops and compact PCs capable of challenging traditional x86 processors.
Next-Generation Architecture
At the heart of RTX Spark lies a powerful chipset combining the Blackwell graphics core and the Grace processor, developed in partnership with MediaTek. The graphics block features 6144 CUDA cores and 5th-generation Tensor cores with FP4 compute support. The processing unit is represented by a 20-core Grace chip.
A key differentiator of the platform is the use of the NVLink-C2C bus with a bandwidth of 600 GB/s. This connection is five times faster than the standard PCIe Gen5 interface, ensuring instant data exchange between components. Top-tier configurations will receive up to 128 GB of unified LPDDR5X memory, while the minimum capacity will be 16 GB.
Gaming Power and Professional Tasks
According to NVIDIA, the chip's graphical power approaches that of the mobile GeForce RTX 5070 Laptop. The platform is capable of delivering over 100 FPS at 1440p resolution in modern AAA games, including Indiana Jones and the Great Circle, with ray tracing and DLSS enabled.
Special attention has been paid to artificial intelligence capabilities. RTX Spark delivers up to 1 petaflop of AI performance in FP4 computations. This opens up possibilities for running language models with 120 billion parameters locally, with a context window of up to 1 million tokens. Professionals will be able to process 3D scenes up to 90 GB in size and edit video in 12K resolution.
Compatibility and Software Support
Since RTX Spark is built on ARM architecture, traditional x86 applications will run via the Microsoft Prism emulator. However, many developers are already preparing native versions of their products. NVIDIA has confirmed support for Blender, DaVinci Resolve, Cinema 4D, CapCut, and Cubase. Adobe is also adapting Photoshop and Premiere Pro for the new platform.
Devices and Release Dates
The first devices powered by RTX Spark will be premium laptops from ASUS ProArt P14/P16, Dell XPS 16, HP OmniBook X14, Lenovo Yoga Pro 9N, Microsoft Surface, and MSI Prestige N16 Flip. In total, NVIDIA partners have over 30 laptop models and 10 compact PCs in development.
The cost of devices, independent test results, and detailed benchmarks will be revealed by NVIDIA closer to the start of sales, scheduled for autumn this year. RTX Spark will become a long-term family of chips designed for different price segments.