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NVIDIA RTX Spark Laptops Feature Grace CPU and Blackwell GPU with 128GB Shared Memory

·2026.10.30 17:25

Key point

The unified memory architecture eliminates the separate RAM and VRAM split for local model execution.

Details

  • NVIDIA RTX Spark laptops integrate a Grace CPU and a Blackwell RTX GPU into a single package.
  • The CPU and GPU access a shared memory pool of up to 128GB, removing the traditional separation between system RAM and video RAM.
  • NVIDIA rates the chip at up to 1 petaflop of FP4 AI performance.
  • The announcement does not specify bandwidth or sustained FP4 performance comparisons against discrete GPU setups.
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