Please compare the Power Mac Dual G4/1.25GHz vs Power Mac Dual G5/2.0GHz
Thanks - Andrew
Power Mac Dual G5/2.0GHz (#M9747LL/A) -- Released
April, 2005 Power Mac Dual G4/1.25GHz (#M8573LL/A ) -- Released
August, 2002
Specifications:
Power Mac Dual G5/2.0GHz has:
More advanced processor - - G5 vs G4
60% Faster processor clock speed - - 2.0GHz vs
1.25GHz
60% More processing capacity - - Two times 2.0GHz
vs two times 1.25GHz
100% More L2 processor cache - - 512K vs 256K
60% Faster L2 processor cache - - 2.0GHz vs 1.25GHz
499% Faster system bus - - 1GHz vs 167MHz
515% More system bus throughput capacity - - 8-GBps
vs 1.3-GBps
PC3200 400MHz DDR SDRAM memory vs PC2700 333MHz DDR
SDRAM memory
100% More maximum RAM memory - - 4GB vs 2GB
More advanced graphics card - - ATI Radeon 9600
vs ATI Radeon 9000 Pro
100% More graphics memory - - 128MB vs 64MB
More advanced graphics slot - - AGP Pro 8X vs
4x AGP
25% Fewer PCI slots - - 3 vs 4
33% More drive capacity - - 160GB vs 120GB
50% Fewer drive bays - - 2 vs 4
More advanced optical drive SuperDrive (DVD+R
DL/DVD±RW/CD-RW) vs SuperDrive (DVD-R/CD-RW)
391% Faster wireless networking - - 54-Mbps AirPort
Extreme vs 11-Mbps AirPort - (optional)
50% More FireWire ports - - 3 vs 2
100% Faster FireWire port - - 1@800 Mbps vs 400
Mbps
50% More USB ports - - 3 vs 2
3900% Faster USB ports - - 480Mbps vs 12Mbps
Power Mac Dual G5/2.0GHz - additional features not found on other machine:
Optional internal Bluetooth module and antenna
Optical digital audio input and output Toslink
connectors
Power Mac Dual G4/1.25GHz - additional features not found on other machine:
2 MB L3 Processor cache per processor
ADC video connector
56k V.90 internal modem
Initial price difference: Power Mac Dual G5/2.0GHz $1,300 less - - $1.999 vs $3,299 Current price difference: Power Mac Dual G5/2.0GHz $550 more - - $1,849 vs $1,299 Computer Trade In Program
Performance
In Performance the Power Mac Dual G5/2.0GHz is ....
Processor - 52% faster
Graphics Gaming (card) - 48% faster
Graphics Gaming (Processor) - 122% faster
Copy Single Large File - 50% faster
iMovie Effect Render - 63% faster
iTunes Encode - 20% faster
A note on performance. Because of the time difference between when we tested these two machines, we are not able to provide you with detailed performance data, and some of the scores above are estimates based on adjusted, original data.
If you would like details on how we arrived at the performance numbers stated above, contact us with your specific question(s)
Copyright 1996-2007 by Cider Press Publishing LLC all rights reserved. MacReviewZone is not authorized, sponsored, or otherwise approved by Apple Computer. Apple, the Apple logo, Macintosh, iPod, iBook, iMac, eMac, and PowerBook are registered trademarks of Apple Computer, Inc. Additional company and product names may be trademarks or registered trademarks and are hereby acknowledged.
= Current Model
= Previous Model
= New Item Available 
= Unavailable 
= Unknown/Delay
= Installation Fee ($20 to $40)
