Nvidia officially entered the laptop processor market at Computex 2026 on June 1 with the RTX Spark — a 3nm SoC combining a 20-core Grace ARM CPU, a Blackwell GPU with 6,144 CUDA cores, up to 128GB of LPDDR5X unified memory, and 1 PFLOP of FP4 AI performance. The Apple M5 Pro, available since March 2026 in MacBook Pro, counters with an 18-core CPU using Apple's Fusion Architecture, up to 64GB of unified memory at 307 GB/s bandwidth, and mature GPU performance through Apple Silicon's deeply optimized ecosystem. In the first available Clang compile benchmark, the 18-core M5 Pro leads the RTX Spark by around 22 percent in sustained CPU performance, while the 15-core M5 Pro is marginally ahead by about 7 percent. On AI compute and GPU capability, the RTX Spark holds the raw performance advantage through CUDA and Tensor Core support — a software ecosystem Apple cannot replicate. Memory bandwidth is effectively tied between the M5 Pro and RTX Spark specifically; the M5 Max pulls ahead significantly at 614 GB/s. RTX Spark laptops from ASUS, HP, Microsoft, Dell, Lenovo, and MSI are expected in autumn 2026, while the M5 Pro is available in MacBook Pro today.