LC III & 475, Performa 475 & 476, Q 605: How They Differ

This article compares the features of five similar Macintosh models: the Macintosh LC III, the Macintosh LC 475, the Performa 475, the Performa 476, and the Quadra 605. These five models have similar weight and dimensions.
Each has a SCSI port and a single expansion slot.

                LC III       LC 475       P 475       P 476       Q 605
                --------     ---------    --------    -------     --------
Market           schools      schools      home        home        business

Processor        68030        68LC040      68LC040     68LC040     68LC040

Clock Speed      25 MHz       25 MHz       25 MHz      25 MHz      25 MHz

FPU Socket       yes          no (5)       no (5)      no (5)      no (5)

Std. RAM         4MB          4MB          4MB         4MB         4MB

Max. RAM         36MB         36MB         36MB        36MB        36MB

Std. Hard Drive  80MB         80/160MB     160MB       230MB       80/160MB

Display          Separate (1) Separate (1) Bundled     Bundled     Separate (1)

Display          Up to        All Apple    All Apple   All Apple   All Apple
Support          16"          displays     displays    displays    displays

VRAM             512/1MB      512/1MB      512/1MB     512/1MB     512/1MB

Colors           256 (2)      256 (3)      256 (3)     256 (3)     256 (3)

                Up to 16-    Up to 16-    Up to 16-   Up to 16-   Up to 16-
                bit on 14"   bit on 16"   bit on 16"  bit on 16"  bit on 16"

PDS              one LC PDS   one LC III-  one LC III- one LC III- one LC III-
                             compat. PDS  compat. PDS compat. PDS compat. PDS

Modem Incl.      no           no           yes         yes         no  

System SW        7.1          7.1          7.1P        7.1P        7.1

Bundled Apps     no           no           yes (4)     yes (4)     no

Notes:
(1) The Performa models are bundled with the Macintosh Performa Display;
   the LC models can be used with a variety of Apple and third-party displays.

(2) Can be upgraded to 32,000 colors with VRAM upgrade from 512K to 768K.

(3) Can be upgraded to 32,000 colors with VRAM upgrade from 512K to 1MB.

(4) The Performa models are shipped with a selection of application software
   appropriate to the target market and resale channel.

(5) These systems come with a 68LC040 that has no FPU.  A qualified technician

   can remove it and replace it with a 68040RC, which includes an FPU; Apple
   neither offers nor supports such an upgrade.
Published Date: Feb 19, 2012