The Specifications of the PowerBook G4

The original Titanium PowerBook G4 offered a 400 or 500 megahertz processor, 128 MB (2 sticks of 64 MB) or 256 MB (2 sticks of 128 MB) of PC100 SDRAM, and a 10 or 20 GB hard drive. It included an ATI Rage 128 Mobility 2x graphics card with 8 GB of VRAM. The laptop came with a 15.2-in. 1152 by 768 LCD screen and included a 2x DVD-ROM drive.
The first update came in October 2001. Changes included a 550 or 667 megahertz processor, 20 or 30 GB hard drive, PC133 SDRAM in the same amounts and an ATI Mobility Radeon 4x graphics card with 16 MB of SDRAM.
Apple introduced two models in 2002. The November 2002 model featured a DVD-writing SuperDrive, the first PowerBook to have it. These models offered 256 MB (2 sticks of 128 MB) or 512 MB (2 sticks of 256 MB) of PC133 SDRAM.
The April model shipped with either a 30 or 40 GB hard drive and either a 667 or an 800 megahertz processor. The November model offered either a 40 GB or 60 GB hard drive and either an 867 megahertz processor or a 1 gigahertz processor.
The switch to aluminum marked a switch to Nvidia GeForce graphics chips as the standard. Apple still uses Nvidia chips in its MacBooks as of 2010. Apple also offered customers ATI chips as an alternative. Aluminum PowerBooks came in 12.1-in., 15.2-in., and 17-in. models. They all had Bluetooth capability (1.1 on earlier models, 2.0 on late models).
Processing power on these models ranges from 867 megahertz in 2003 to 1.67 gigahertz in 2005. Hard drive sizes range from 40 GB to 120 GB. These models offered either 256 MB or 512 MB of RAM.