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- Xref: sparky comp.sys.mac.misc:14964 comp.sys.mac.system:11036
- Path: sparky!uunet!newsstand.cit.cornell.edu!vax5.cit.cornell.edu!nrz
- From: nrz@vax5.cit.cornell.edu
- Newsgroups: comp.sys.mac.misc,comp.sys.mac.system
- Subject: Re: Information on: The IIvi, IIvx, and Performa 600
- Message-ID: <1992Aug17.152337.14511@vax5.cit.cornell.edu>
- Date: 17 Aug 92 15:23:37 EDT
- References: <1992Aug12.233545.28691@galileo.cc.rochester.edu> <1992Aug16.144158.24957@risky.ecs.umass.edu>
- Distribution: na,comp
- Organization: Cornell University
- Lines: 91
-
- breck@kirk.ecs.umass.edu (Liam Breck) writes (comparing IIsi and LC II):
-
- > This is a common misconception. Actually, the IIsi is about 28%
- > faster, which is not enough to notice in most real-time applications.
- > When doing something very CPU-bound, you might notice. That is to
-
- and ...
-
- > ... Aside from the better price the LCII has:
- > dedicated, dual-ported VRAM and hence equal or better video
- > performance than the IIsi, ...
-
- and ...
-
- > It's the same in the case of the Macs; you'll find that the original
- > Mac II is only 4% faster than the original LC (both 020s at 16MHz).
-
- Someone else already posted Speedometer results to refute the IIsi vs.
- LC II claims. When I was shopping for a Mac, I copied some "real-world"
- benchmarks from Mac-whatever ('User' or 'World'). The benchmarks involved
- the LC, not the LC II, but later benchmarks have shown the LC/LC II to be
- almost identical in speed. (I haven't benchmarks that support another
- poster's claim that the LC II was 10-20% faster than the LC.) Some results
- follow. Numbers are seconds required to complete each benchmark.
-
-
- Graphics(?) Find/Replace Scroll Sort 4D D/B Open Files
-
- IIsi: 29.2 53.8 68.1 155 13.2
- II: 40.6 65.8 78.1 197 18.9
- LC: 50.2 88.1 92.8 240 20.9
-
- LC/IIsi: 1.72 1.64 1.36 1.55 1.58
- (ratio)
- LC/II: 1.24 1.34 1.19 1.22 1.11
- (ratio)
-
-
- Save Tween Redraw
- Word File Swivel Image(??) Wingz Chart
-
- IIsi: 24.6 176 31.9
- II: 33.6 245 36.0
- LC: 46.2 352 53.7
-
- LC/IIsi: 1.88 2.0 1.68
- (ratio)
- LC/II: 1.38 1.44 1.49
- (ratio)
-
-
- While such benchmarks aren't the last word (e.g., what disks were
- involved?) these numbers indicate that the IIsi, and even the Mac II,
- have much better performance relative to the LC/LC II than Liam says.
-
- Note also that the Mac-whatever magazines have (until recently) been
- notoriously unaware of the "384K disk cache" trick for speeding up the
- IIsi, so these numbers may not reflect optimal IIsi performance. (BTW,
- 384K is hardly a "huge" disk cache, as Liam said is needed for this
- speedup.)
-
- Also, Liam said
-
- > Another point about video... Since the LCII can use a low cost VGA
- > monitor (I got a Trinitron screen for $350) it really lets you save on
- > the monitor. To get the same quality on a IIsi, expect to shell out
- > the bucks!
-
- I have to pick a nit with this. I have seen a Sony 1320 on an LC, and
- I have a 1304 on my IIci. The 1320/LC combination had some noticeable
- flicker (to my eye). This suggests to me that the LC's VGA mode is
- using a 60Hz refresh -- lower than the Mac II standard 66.7Hz. This may
- be a disadvantage for people who are more flicker-sensitive.
-
- Finally, Liam wrote (in a later posting):
-
- > ... Until recently, the IIsi was badly
- > overpriced, so price/performance wise (that's my argument here) the
- > LCII has been the better machine.
- ^^^ ^^^^
-
- Whoa. We're talking about now, not "has been". Initially, you yelled
- (figuratively) at some poster, telling him not to buy the IIsi. It
- appears you were, at first, unaware of the recent price cuts on the IIsi.
- Above, you're backing off from your initial statements.
-
- As for the overall IIsi/LC II value comparison, I would say that the
- recent price cut on the IIsi has made it so close in price to the LC II
- that I'd have trouble justifying the LC II (unless perhaps, you don't
- mind the LC's VGA mode, in which case you could save on a monitor). As
- for waiting for the new Macs, that's beyond the scope of this article :-).
-