HP ZBook 15 G2 i7-4810MQ RAM 8GB SSD 256GB FHD Quadro K1100M

HP ZBook 15 G3 i7-6700HQ RAM 8GB SSD 512GB FHD AMD W5170M (2GB)

Intel core i7-3720QM / 8G / 500G / K1000M / FHD 1920*1080

HP ZBook 15 G3 i7-6820HQ 8GB SSD 256GB FHD Nvidia M1000M 2G

HP ZBook 15 G4 i7-7700HQ RAM 8GB HDD 1TB Quadro M1200