NVIDIA RTX Spark
The second Windows on Arm platform ships October 16 — Grace CPU, Blackwell GPU, up to 128 GB
RTX Spark is NVIDIA's Windows on Arm platform: a Grace Arm CPU (N1X starts at 18 cores) fused to a Blackwell RTX GPU with 5,120–6,144 CUDA cores and 24–128 GB of unified memory. It runs the same Windows on Arm stack as Snapdragon — Arm64 apps natively, x86/x64 through Prism — and adds CUDA Toolkit 13.4 with native Windows on Arm GPU support for the first time. The first laptops from Microsoft, Dell, HP, ASUS and Lenovo ship October 16, 2026, starting at $2,599.
Das Wichtigste
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Same compatibility rules
Arm64 apps run natively and x86/x64 apps run through Prism, exactly like on Snapdragon. A title's verdict in our database carries over — but drivers, plugins and anti-cheat still need per-app verification.
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CUDA comes to Windows on Arm
CUDA Toolkit 13.4 (September 2026) supports GPU compute natively on Windows on Arm, with the RTX driver stack shipping day one. GPU-accelerated tools and local AI models that depend on CUDA no longer rule out an Arm PC.
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One memory pool, 24–128 GB
CPU and GPU share up to 128 GB of unified memory. From the $2,599 Surface Laptop Ultra (N1X, 24 GB) to 128 GB configurations, large local models load without swapping.