![]() The MC68LC040 version was less expensive because it omitted the floating-point unit. ![]() The Motorola 68040 had improved per-clock performance compared to the 68030, as well as larger instruction and data caches, and was the first Mac processor with an integrated floating-point unit. Another improvement over the 68020 was the addition of a data cache. The Motorola 68030 was the first Mac processor with an integrated memory management unit, allowing for virtual memory.
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