Learn the bus speeds for each model of Macintosh computer from the Power Macintosh G3 and later. (For computers manufactured earlier than seven years ago, see document 17121.
The table below contains the name, processor speed, and bus speed for each Macintosh computer manufactured in the last seven years.
| Computer | Processor Speed | Bus Speed |
| Power Macintosh G3 | ||
| Power Macintosh G3 Mini Tower | 233 MHz, 300 MHz | 66 MHz |
| Power Macintosh G3 Desktop | 233 MHz, 300 MHz | 66 MHz |
| Power Macintosh G3 All-in-One | 233 MHz, 266 MHz | 66 MHz |
| Power Macintosh G3 (Blue and White) | 350 MHz, 400 MHz, 450 MHz | 100 MHz |
| Power Mac G4 | ||
| Power Mac G4 (PCI Graphics) | 350 MHz, 400 MHz | 100 MHz |
| Power Mac G4 (AGP Graphics) | 350 MHz, 400 MHz, 450 MHz, 500 MHz | 100 MHz |
| Power Mac G4 Cube | 450 MHz | 100 MHz |
| Power Mac G4 (Gigabit Ethernet) | 400 MHz, dual 450 MHz, dual 500 MHz | 100 MHz |
| Power Mac G4 (Digital Audio) | 466 MHz, 533 MHz, dual 533 MHz, 733 MHz | 133 MHz |
| Power Mac G4 (QuickSilver) | 733 MHz, 867 MHz, dual 800 MHz | 133 MHz |
| Power Mac G4 (QuickSilver 2002) | 800 MHz, 933 MHz, dual 1 GHz | 133 MHz |
| Power Mac G4 (Mirrored Drive Doors) | dual 867 MHz, dual 1 GHz, dual 1.25 GHz | 133 MHz (dual 867 MHz) or 167 MHz |
| Power Mac G4 (FW 800) | 1 GHz, dual 1.25 GHz, dual 1.42 GHz | 133 (1 GHz) or 167 MHz |
| Power Mac G4 (Mirrored Drive Doors 2003) | 1.25 GHz, dual 1.25 GHz | 167 MHz |
| Power Mac G5 | ||
| Power Mac G5 | 1.6 GHz, 1.8 GHz, dual 2.0 GHz | 800 MHz, 900 MHz, or 1 GHz per processor |
| Power Mac G5 (June 2004) | dual 1.8 GHz, dual 2.0 GHz, dual 2.5 GHz | 900 MHz, 1 GHz, or 1.25 GHz per processor |
| Power Mac G5 (Late 2004) | 1.8 GHz | 600 MHz |
| Power Mac G5 (Early 2005) | dual 2.0 GHz, dual 2.3 GHz, dual 2.7 GHz | 1 GHz, 1.15 GHz, or 1.35 GHz per processor |
| Mac mini (with G4 processor) | ||
| Mac mini | 1.25 GHz, 1.42 GHz | 167 MHz |
| iMac (with G3 processor) | ||
| iMac 233 MHz | 233 MHz | 66 MHz |
| iMac 266 MHz | 266 MHz | 66 MHz |
| iMac 333 MHz (Five Flavors) | 333 MHz | 66 MHz |
| iMac (Slot Loading) | 350 MHz, 400 MHz | 100 MHz |
| iMac (Summer 2000) | 350 MHz, 400 MHz, 450 MHz, 500 MHz | 100 MHz |
| iMac (Early 2001) | 400 MHz, 500 MHz, 600 MHz | 100 MHz |
| iMac (Summer 2001) | 500 MHz, 600 MHz, 700 MHz | 100 MHz |
| iMac (with G4 processor) | ||
| iMac (Flat Panel) | 700 MHz, 800 MHz | 100 MHz |
| iMac (17-inch Flat Panel) | 800 MHz | 100 MHz |
| iMac (17-inch 1GHz) | 1 GHz | 133 MHz |
| iMac (USB 2.0) | 1 GHz, 1.25 GHz | 167 MHz |
| iMac (with G5 processor) | ||
| iMac G5 | 1.6 GHz, 1.8 GHz | 533 MHz, 600 MHz |
| eMac (with G4 processor) | ||
| eMac | 700 MHz, 800 MHz | 100 MHz |
| eMac (ATI Graphics) | 800 MHz, 1 GHz | 133 MHz |
| eMac (USB 2.0) | 1.25 GHz | 167 MHz |
| PowerBook G3 | ||
| PowerBook G3 | 250 MHz | 50 MHz |
| PowerBook G3 Series | 233 MHz, 292 MHz | 66 MHz or 83 MHz |
| PowerBook G3 Series (Bronze Keyboard) | 333 MHz, 400 MHz | 66 MHz |
| PowerBook (FireWire) | 400 MHz, 500 MHz | 100 MHz |
| PowerBook G4 | ||
| PowerBook G4 | 400 MHz, 500 MHz | 100 MHz |
| PowerBook G4 (Gigabit Ethernet) | 550 MHz, 667 MHz | 100 MHz or 133 MHz |
| PowerBook G4 (DVI) | 667 MHz, 800 MHz | 133 MHz |
| PowerBook G4 (1 GHz/867 MHz) | 867 MHz, 1 GHz | 133 MHz |
| PowerBook G4 (15-inch FW 800) | 1 GHz, 1.25 GHz | 167 MHz |
| PowerBook G4 (15-inch 1.5/1.33GHz) | 1.33 GHz, 1.5 GHz | 167 MHz |
| PowerBook G4 (12-inch) | 867 MHz | 133 MHz |
| PowerBook G4 (12-inch DVI) | 1 GHz | 133 MHz |
| PowerBook G4 (12-inch 1.33GHz) | 1.33 GHz | 167 MHz |
| PowerBook G4 (17-inch) | 1 GHz | 167 MHz |
| PowerBook G4 (17-inch 1.33GHz) | 1.33 GHz | 167 MHz |
| PowerBook G4 (17-inch 1.5GHz) | 1.5 GHz | 167 MHz |
| iBook G3 | ||
| iBook | 300 MHz, 366 MHz | 66 MHz |
| iBook (FireWire) | 366 MHz, 466 MHz | 66 MHz |
| iBook (Dual USB) | 500 MHz | 66 MHz |
| iBook (Late 2001) | 500 MHz, 600 MHz | 66 MHz or 100 MHz |
| iBook (14.1 LCD) | 600 MHz | 100 MHz |
| iBook (16 VRAM) | 600 MHz, 700 MHz | 100 MHz |
| iBook (14.1 LCD 16 VRAM) | 700 MHz | 100 MHz |
| iBook (Opaque 16 VRAM) | 700 MHz | 100 MHz |
| iBook (32 VRAM) | 800 MHz | 100 MHz |
| iBook (14.1 LCD 32 VRAM) | 800 MHz | 100 MHz |
| iBook (Early 2003) | 800 MHz, 900 MHz | 100 MHz |
| iBook G4 | ||
| iBook G4 | 800 MHz | 133 MHz |
| iBook G4 (14-inch) | 933 MHz, 1 GHz | 133 MHz |
| iBook G4 (Early 2004) | 1 GHz | 133 MHz |
| iBook G4 (14-inch Early 2004) | 1 GHz, 1.2 GHz | 133 MHz |
| iBook G4 (12-inch Late 2004) | 1.2 GHz | 133 MHz |
| iBook G4 (14-inch Late 2004) | 1.33 GHz | 133 MHz |