IdeaPad Y900-17ISK and Pavilion Power share specifications such as Storage Capacity (128 GB), Display Resolution (1920 x 1080), Form Factor (Clamshell), Operating System (Windows 10).
The main differences: Processor Model (IdeaPad Y900-17ISK: Intel Core i7 6700HQ 2.6GHz, Pavilion Power: Intel Core i7-7700HQ); GPU Model (IdeaPad Y900-17ISK: Nvidia GeForce GTX 980M, Pavilion Power: NVIDIA GeForce GTX 1050); Installed Memory (IdeaPad Y900-17ISK: 16 GB, Pavilion Power: 12 GB); Display Size (IdeaPad Y900-17ISK: 17.3 inch, Pavilion Power: 15.6 inch).
IdeaPad Y900-17ISK may suit users who need its differing values, while Pavilion Power benefits those who need its paired strengths. Review the specs table above before deciding.