By Jackson Chung
Publication Date: 2026-10-17 16:49:00
NVIDIA RTX Spark machines reached store shelves yesterday from ASUS, Dell, HP, Lenovo, Microsoft, and MSI, with the Surface Laptop Ultra and ProArt models among the first available starting at $2,599. These systems pack a single superchip that combines a custom Grace CPU designed with MediaTek and a Blackwell RTX GPU into one package, sharing up to 128GB of LPDDR5X memory so both the processor and graphics draw from the same pool without the usual split between system RAM and dedicated video memory.
That memory configuration is at the heart of what these laptops can do. Top-end models use a 20-core Grace design, 10 high-performance Cortex-X925 cores, and 10 efficiency A725 cores, together with a Blackwell GPU with 6,144 CUDA cores. In terms of shader count, that is about equivalent to an RTX 5070. Lower-end versions are limited to 18 cores and 5,120 shaders. Memory bandwidth is roughly 300GB/s, and NVIDIA claims that this technology can give up to one petaflop of FP4 AI performance while using only 45-to-80 watts of power. Tests have already proven that the GPU can compete with Apple’s M5 Max in some rendering and AI applications, despite the fact that the single-core and multi-core CPU numbers remain far lower than the M5 Pro and Max.
