Editing Macintosh LC 475 (section)

== Architecture and Processor ==

The LC 475 uses a Motorola 68LC040 processor running at 25 MHz. The "LC" designation indicates this is a cost-reduced 68040 without a built-in FPU. However, the processor is socketed, allowing replacement with a full 68040 for FPU support.<ref>{{cite web |url=https://lowendmac.com/1993/macintosh-lc-475/ |title=Macintosh LC 475 |publisher=Low End Mac |access-date=2026-02-09}}</ref>

The 68LC040 includes:
* 8 KB L1 cache (4 KB instruction + 4 KB data)
* Integrated MMU
* Full 32-bit data and address buses

The Gestalt ID for the Macintosh LC 475 is 89.

'''PowerPC Upgrade:''' The LC 475 can accept a PowerPC 601 upgrade card, enabling use of Mac OS 8.1 and PowerPC-native software.