Below we have a performance comparison between
the new Power Mac dual G4/1000 and the old Dual Processor
G4/1000. The new machine costs $500 less than the old machine
cost when it was first released. From a performance standpoint,
have things changed much between the old and new?
Aside from drive performance there hasn't been
a whole lot improvement. Our folder copy test showed a 55%
speed improvement over the older GHz machine and our single
file test a 13% improvement.
Otherwise, where there was improvement, it was
pretty minimal. 4% in our on-screen graphics tests, 8% in
In some tests the new GHz machine came in behind
the old one, like our AppleWorks Search & Replace test,
where the new machine lagged the old by 5%.
In basic hardcore processing, both machines
turned in the same score and the new machine did pull ahead
by 17% in our Excel test.
Gaming performance was a mixed bag. Running
Giants was 2% slower on the new machine, but that only translated
to 1 frame per second. Quake III and 4x4 EVO2 both ran somewhat
faster on the newer Tower.
One thing effecting the performance of the new
Tower is that it only has half the L3 cache per processor
that its predecessor has. We think that this held back the
new Tower from performing better in some of the tests.
Another thing to note is that the old machine
was running OS 10.1 and the new machine 10.2. Both the default
operating systems that came with each machine. How much of
a factor the new OS played in some of the scores below is
something we will be testing soon (we have one of the old
versions of the GHz Towers on its way to us). We don't believe
that it would effect most of the test results below, but may
have been a factor in some of the tests related to graphics
performance, and perhaps the drive tests as well .... we will
know shortly. In any case the new OS should have been an advantage
to the new machine, and as it turned out, for the most part,
they were pretty evenly matched.
We also have a 1.25 GHz machine in hand, and
so should be able to provide you with detailed performance
information on this machine in the very near future.
The tests below are from our suite of real
world application tests. These tests feature a diverse selection
of applications commonly used by the Mac community. The test
suite was designed to render an accurate and well rounded
picture of a machine's performance. All of the tests below,
except for the game tests, were timed with a stopwatch. The
times were then converted to percentages, relative to the
Power Mac Dual G4/1000 released in the Winter of 2002, which
is set to 100%. For all scores, higher numbers are better.
Drive performance on the new Towers seem to
be one area of improvement
On screen redraws are only slightly better
in the newer machine. . Let
1K Windows Bloom is a simple carbon application that opens
and closes 1,000 windows.
Large document is scrolled from one end to the
other using Classic OS 9.2.2 when booted in OS 10. Test shows
the performance of on-screen graphics. It is possible that
the older Tower is helped in the two test above by the fact
that it has 2 MB of L3 cache per processor as opposed to only
1 MB per processor on the newer machine
Large Document & Database Type Tests
(series of complex actions) was run in Microsoft's Word
program, which is part of Office
A Macro (series of complex actions) was
run in Microsoft's Excel program, which is part of Office
Stresses the processing & memory systems
of the machine. This test takes place in a large AppleWorks
document. and is a raw processing power test. The new Tower
is hurt, we believe, by the smaller amount of L3 cache in
Number Crunching & Rendering Tests
program has been highly tuned to take advantage of the
G4 and is precisely the type of work that the G4 was made
for. It will also gobble up whatever processing capability
is present. This is a good test for assessing the fundamental
processing potential of each machine.
encode compresses a QuickTime movie for streaming on the Web
A Sorenson encode and fractal render are
performed at the same time
Aside from the graphics card, Giants
is also tuned to take advantage of the processor as well.
Indeed, when run on a dual processor machine, you will see
ahead of the same game running on a single processor machine.
Frame rates here are 48 fps for the older machine and 45 fps
for the current one. Again this may be a case where the new
machine was hurt by the amount of L3 cache it has.
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