Screwdriver Referrence:
T8 Security Torx Only - Torx Screwdriver Repair / Open Tool for the XBOX 360 Controller and the PS3 Slim Console.
T6 & T8 Torx - Used to open Xbox 360 console, Xbox One controller (You need both these screwdrivers to open fully, not just T8) and also PS3 Fat consoles, plus various other devices.
T8 & T10 Security Torx - Xbox 360 console, XBox 360 controller, PS3 slim and fat, PS4 (uses a T9, however T8 fits fine), can't open PS4 controllers and it would need an additional Philips screwdriver.