RTX Spark laptops use the same chip as DGX Spark's GB10, but with faster memory

Testing an HP OmniBook Ultra 16 with RTX Spark found the chip matches the DGX Spark's GB10 in SoC ID, CPU cores and GPU, but runs LPDDR5X memory at 9,400 MT/s versus 8,533 MT/s. Bandwidth tests show the laptop ahead by 18–23%.

• RTX Spark and GB10 share the same SoC ID, 20 Arm cores and 48-SM GPU
• 128 GB LPDDR5X runs at 9,400 MT/s on the laptop vs 8,533 MT/s on DGX Spark
• 2 GB GPU read test: 282.9 GB/s vs 239.8 GB/s, an 18% lead
• All-core STREAM triad: 142.5 GB/s vs 116.2 GB/s, about 23% higher