Thread: 020 030 040?
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Old 27 April 2011, 23:30   #3
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The 020 & 030 are almost the same processor. Minor upgrade on the way registers wands around and bit speed increase.

The 040 is another story. A 25MHz unit will surpass a 50MHz clocked 030 with both legs tied to the back.

Only for information purposes on the 680x0 family:

68000 is the the first, count it as a major revision.

Odd x number means a minor revision, so the 010 is a bit better than the 000, 030 is a bit better than 020 (more speed clock possibility, internal MMU).

The 040 & 060 doesn't have minor revisions, albeit the fact the 060 is just a 040 with dual pipeline and more clock (IIRC, Motorola almost labelled the 060 as 68050).
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