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Originally
posted 03/18/03 by rob-ART
morgan,
mad scientist Does the 1.42GHz
Power Mac overcome the memory bottleneck
experienced with earlier DDR Power Macs? Or is it
just another speed bump? Let's see what the test
results show... CONCLUSION I ordered the
1.42GHz MP for my personal use, not because I
believed it was the breakthough Power Mac, but
because I wanted FireWire 800, AirPort Extreme, and
the Radeon 9700 option. If you are looking for the
next big jump in CPU speed, you're going to have to
keep waiting. Compared to the
old SDR Power Mac, there is still no advantage
to having a DDR memory Power Mac outside of faster
clock speed, with one exception: doing large
gigabit network transfers while running CPU
intensive apps. And how many of us do that
regularly? Anyone? As you can see
from page
two,
unless you tweak the config file, the fastest Mac
gets smoked by a comparably equipped Pentium 4 when
running Quake3. Unless Apple makes a dramatic leap
in technology, there's very little chance they'll
produce a Wintel "killer." RELATED
LINKS PowerLogix
published an in-depth
white paper discussion (PDF
)
comparing single data rate static RAM ("SDR")
architecture versus double data rate ("DDR") when
designing the level 3 cache circuitry for use with
the latest Motorola G4/745x processors. Here
are
test results comparing the 3GHz Pentium 4 to a Dual
1.25GHz G4.
I'm not clear on how the tests were chosen but I
hope to test the 3GHz P4 using my own "MP"
Photoshop script that favors dual
processors. The battle lines
are forming between the hot Radeon 9700 Pro and
the GeForce FX 5800 Ultra. Here is the
Windows
PC test results on
AnandTech
showing the Radeon superior when you crank up the
resolution and anti-alias settings. (You might also
want to take a look at how the Radeon
9700 Pro compares to the GeForce4 Titanium 4600
since Apple will be offering both on the new Power
Macs.)
Stay tuned for Bare Feat's own comparison of the
Radeon 9700 to the GeForce4 Ti. TEST
NOTES The "SDR" Power
Mac 1GHz MP had 1GB of PC133 CL2 SDRAM. All four were
running the GeForce4 Titanium graphics
card. For details on
each real world test, read "HOW
I TEST."
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© 2003 Rob Art
Morgan "BARE facts on Macintosh speed FEATS" Email webmaster at rob-art@barefeats.com
(Bare Feats is hosted on a G4 Power Mac server by MacDock.com) |
