ThinkPad P40 and ZenBook Pro share specifications such as Launch Year (2016 year), Operating System Architecture (64-bit), Processor Manufacturer (Intel), Processor Family (Intel Core i7).
The main differences: Processor Model (ThinkPad P40: Intel Core i7 6600U 2.6GHz, ZenBook Pro: Intel Core i7 6700HQ 2.6GHz); GPU Model (ThinkPad P40: Nvidia Quadro M500M, ZenBook Pro: Intel HD Graphics 530); Installed Memory (ThinkPad P40: 8 GB, ZenBook Pro: 12 GB); Storage Capacity (ThinkPad P40: 512 GB, ZenBook Pro: 128 GB).
ThinkPad P40 may suit users who need its differing values, while ZenBook Pro benefits those who need its paired strengths. Review the specs table above before deciding.