Power Macintosh G3 (Blue and White) - Technical Specifications

 Power Macintosh G3 (Blue and White) - Technical Specifications

Technical Specifications


  • 350-, 400-, or 450-MHz PowerPC G3 processor
  • 1MB backside level 2 cache on processor, running at 175, 200, or 225 MHz depending on processor speed
  • 100-MHz system bus
  • Integrated floating-point unit and 64K on-chip level 1 cache (32K for data and 32K for instruction)


  • 64MB or 128MB of PC100 SDRAM (3.3-volt, unbuffered, 64-bit-wide, 168-pin, 100 MHz/8ns devices)
  • Four DIMM slots support up to 1GB of PC100 SDRAM using the following DIMMs: 
    —32MB, 64MB, or 128MB DIMMs (64-bit-wide, 64-Mbit technology) 
    —128MB or 256MB DIMMs (64-bit-wide, 128-Mbit technology)

Graphics support

ATI RAGE 128 graphics card with 16MB of SDRAM graphics memory, which provides the following capabilities:

  • 2D performance 
    —128-bit internal engine 
    —Hardware acceleration of graphics and video 
    —Support for up to 1,600 by 1,200-pixel resolution at 32 bits per pixel (millions of colors)
  • 3D performance 
    —Advanced integrated triangle setup engine 
    —Single-pass multitexturing design 
    —Full 32-bit-per-pixel (bpp) Z buffer and 8-bpp stencil buffer
    —Robust support of QuickDraw 3D RAVE and OpenGL

Note: The tables below show available resolutions, colors and maximum refresh rates (measure in Hz)


  • One of the following: 
    —6GB Ultra ATA hard disk 
    —12GB Ultra ATA hard disk 
    —9GB Ultra2 LVD SCSI hard disk with Ultra2 LVD SCSI PCI card
  • 32x-speed (maximum) CD-ROM drive; or 5x-speed (maximum) DVD-ROM drive with DVD-Video playback (reads CD-ROMs at up to 32x speed)
  • Zip drive (some configurations)
  • Two additional expansion bays for Ultra Wide SCSI and Ultra2 LVD SCSI drives


  • Connectivity 
    —Two 400-Mbps FireWire ports 
    —Two 12-Mbps Universal Serial Bus (USB) ports 
    —Apple Desktop Bus (ADB) port (maximum current draw for all ADB devices is 500 mA.**Note: The Apple Developer Note on this product incorrectly states that the maximum current draw is 100 mA).
  • Communications 
    —Built-in 10/100BASE-T Ethernet connector (RJ-45) 
    —Optional internal 56K modem card (supports K56flex and V.90 standards)**
  • Expansion 
    —Four PCI slots: three 64-bit, 33-MHz slots and one 32-bit, 66-MHz slot dedicated to the ATI RAGE 128 graphics card
  • Video 
    —15-pin mini D-Sub VGA connector and Macintosh-to-VGA adapter
  • Sound 
    —Minijacks for 16-bit stereo audio input and output; 44.1-kHz sampling rate 
    —Built-in speaker
2D Display Modes
Monitor Resolution 640 x 480 800 x 600 1024 x 768 1152 x 864 1280 x 1024
256 colors 85 85 85 75 75
Thousands 85 85 85 75 75
Millions 85 85 85 75 75
Maximum 3D Resolutions
Thousands up to 1600 x 1200
Millions up to 1280 x 1024

Electrical requirements

  • Line voltage: 115V AC (90V to 132V AC) or 230V AC (180V to 264V AC)
  • Frequency: 47 to 63 Hz, single phase
  • Maximum continuous power (not including display): 200W

Environmental requirements

  • Operating temperature: 50° to 95° F (10° to 35° C)
  • Storage temperature: -40° to 116° F (-40° to 47° C)
  • Relative humidity: 10% to 90% noncondensing
  • Maximum altitude: 10,000 feet (3,048 m)

Keyboard and mouse

  • Apple USB Keyboard and Apple USB Mouse

Size and weight

  • Height: 17.0 inches (43.2 cm)
  • Width: 8.9 inches (22.6 cm)
  • Depth: 18.4 inches (46.7 cm)
  • Weight: 28.7 pounds (13.0 kg)***

* Storage devices and number of available expansion bays vary among configurations; see Available Configurations chart for details. Other configurations are available as build-to-order options from the Apple Store

** Data speeds up to 56 Kbps, fax speeds up to 14.4 Kbps. Actual download speeds vary with line conditions and your Internet service provider's modem capabilities. FCC regulations limit ISP transmission speeds to 53 Kbps in the U.S.

*** Varies depending on configuration. Example includes CD-ROM drive, Zip drive, and Ultra ATA hard disk.

Published Date: Jul 26, 2017