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| SE/30 versus Classic II speed |
Posted by: beachycove on 2019-03-09 17:07:48
Does the SE/30 have any significant speed advantage over the Classic II? LEM says they are about the same, which I find surprising, given the 32-bit bus in the SE/30 and the 16-bit in the Classic II. Processors, of course, are both 68030 @ 16mhz.
Any thoughts?
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Posted by: maceffects on 2019-03-09 17:33:32
Interesting hypothesis, though I must admit that non-statistically I feel that the SE/30 is faster. That said, the Classic II us certainty more limited in terms of expandability, thus allowing for less possible overall speed.
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Posted by: superjer2000 on 2019-03-09 18:45:12
The SE/30 is substantially faster. LEMs Speedometer benchmarks seem fishy to me between the Classic II and the SE/30 but their Mac Bench shows 1.8 for the Classic II and 3.2 for the SE/30 which seems about right. Side by side the Classic II is a dog. Some guy even did a YouTube video showing it.
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Posted by: Trash80toHP_Mini on 2019-03-09 22:01:18
Benchmarks always lie, one way or the other if not both ways and a third at the same time.
IRL it probably depends upon tasking more than anything. The HDD in the Classic II was likely a bit snappier than the drives shipped in early SE/30 production. But throughput's probably the same unless Combo is a tad faster than the SCSI implementation in the SE/30, it could hardly be slower. If your application isn't memory intensive, but CPU a/o disk limited instead, I doubt you could feel or quantify much of a difference.
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Posted by: superjer2000 on 2019-03-09 22:14:57
If you boot them side by side running same OS SE/30 is still much faster. Loading apps, etc, I can't think of anything where the Classic II feels near as fast as the SE30.
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Posted by: Paralel on 2019-03-10 12:00:23
With the supplemental ROM/FPU card, the Classic II kicks he crap out of the SE/30 in math operations
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Posted by: Trash80toHP_Mini on 2019-03-10 12:46:23
Interesting, that I wouldn't have expected. ROM is on the processor's 32-bit bus, but the FPU/ROM expansion connector is on a 16-bit data bus.
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Posted by: Paralel on 2019-03-10 12:54:42
Yep, the only 68030 based machine that roundly kicks its butt is the Mac IIfx.
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Posted by: ArmorAlley on 2019-03-10 13:20:33
Yep, the only 68030 based machine that roundly kicks its butt is the Mac IIfx. IIci?
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Posted by: Trash80toHP_Mini on 2019-03-10 13:24:45
BIG TIME Classic II/SE/30 butt kicker! [😛]
edit: IIsi with its 25% clock bump is considerably faster than the either as well. Just about any card for it has the option for FPU installation on its faster 32-bit PDS.
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