How Does the Wii U Work? Hardware, Features & Legacy

The Wii U (2012–2017) succeeded the Wii, distinguished by its Wii U GamePad—a touchscreen controller that could function independently of the TV.

Hardware

• Console: Custom IBM PowerPC "Espresso" tri-core CPU, AMD "Latte" GPU (Radeon HD 4000-series derived), 2 GB RAM (1 GB games / 1 GB OS), 8 GB (Basic) or 32 GB (Deluxe) internal storage + USB external support, HDMI out, Wi-Fi (802.11n), Ethernet.
• GamePad: 6.2" 854×480 resistive touchscreen, motion sensors (accelerometer, gyroscope, geomagnetic), traditional buttons/sticks, front-facing camera, microphone, stereo speakers, NFC reader, IR blaster (TV remote). Wireless link to console (~8–10m range).
• Discs: Proprietary 25 GB optical discs (not Blu-ray/DVD).
• Peripherals: Wii Remote, Nunchuk, Classic Controller, Wii Balance Board, Pro Controller all supported.

Key Features

• Off-TV Play: Play entirely on GamePad screen while TV is off or used by others.
• Second Screen Gameplay: Maps, inventory, asymmetric multiplayer (e.g., Nintendo Land, ZombiU).
• Touch & Motion Controls: Intuitive interaction for menus, drawing, aiming.

Software

• Custom Linux-based OS with Nintendo's proprietary APIs.
• Standout Exclusives: Super Mario 3D World, Splatoon, Mario Kart 8, Super Smash Bros. for Wii U, The Legend of Zelda: The Wind Waker HD, Twilight Princess HD, Bayonetta 2, Xenoblade Chronicles X.

Discontinued in 2017 after ~13.5M units sold. Historically significant for pioneering touchscreen/second-screen console gameplay that influenced the Switch.