Apple Macintosh Performa 577 - Manual (Page 6)

Specifications Processor - 1
Processor
Performa 550, 560
Motorola 68030 microprocessor
33 MHz
Built-in memory management unit (MMU)
Performa 575, 577,
578
Motorola 68LC040 microprocessor
33 MHz
Built-in memory management unit (MMU)
Coprocessor Socket for optional math coprocessor