The Hollywood is a multi-chip module (MCM) package containing two dies under the cover. One of the two chips, codenamed Napa, controls the I/O functions, RAM access, and the actual GPU with its embedded DRAM, and measures 8 × 9 mm. The other, codenamed Vegas, holds the Audio DSP and the 24 MB of "internal" 1T-SRAM and measures 13.5 × 7 mm.
The Hollywood also contains an ARM926 core, which has been unofficially nicknamed the Starlet. This embedded microprocessor performs many of the I/O functions, including controlling the wireless functionality, USB, the optical disc drive, and other miscellaneous functions. It also acts as the security controller of the system, performing encryption and authentication functions. The Hollywood includes hardware implementations of AES and SHA-1, to speed up these functions. Communication with the main CPU is accomplished via an IPC mechanism. The Starlet performs the WiiConnect24 functions while the Wii console is in standby mode.