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The following prerelease information provided by Johnny Applespeed, where a more complete report will be posted shortly
Friday, February 17, 2006
Request a Comparison between any two Macs
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Hi John,
The thing about machines with multiple processors is that in many instances you get more power than you are capable of using. In our testing we were not able to max out the 4 processors of the Quad machine when using Photoshop. The best we could do was 60% overall. To take full advantage of of the machine, you would need some kind of multitasking strategy. In this way you could push the machine to its limit.
That being said the more processing capacity (as opposed to speed ... which is important too), you have, the more flexible will be your work environment ... The ability to run multiple applications, carrying out multiple processor intensive tasks at once.
Your comparison follows below ...
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G5 Power Mac Dual Core 2.3 GHz versus G5 Power Mac Quad Core 2.5 GHz
G5 Power Mac Quad Core 2.5 GHz- M9592LL/A -- Released October 2005
G5 Power Mac Dual Core 2.3 GHz- M9591LL/A -- Released October 2005
Specifications info
G5 Power Mac Quad Core 2.5 GHz
G5 Power Mac Dual Core 2.3 GHz
Initial price difference: G5 Power Mac Quad Core 2.5 GHz $800 more - - $3,299 vs $2,499
Current price difference: G5 Power Mac Quad Core 2.5 GHz $650 more - - $2,799 vs $2,149
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Performance
In Performance the G5 Power Mac Quad Core 2.5 GHz is ....
Processor Single - 9% faster
Processor Multi - 83% faster
Processor Saturation - 114% faster
Processor Multitasking - 81% faster
Graphics Card - 2% faster
Graphics Processor - 9% faster
Graphics Gaming - same
Graphics Interface - 23% faster
Copy (many files) - 4% slower
Copy (Single large file) - 4% faster
Photoshop Filters (Dual Tuned) - 47% faster
Photoshop Filters (Single) - 10% faster
Photoshop Workflow - 8% faster
A note on performance. In none of the Photoshop tests above were the processors of either machine maxed out. In the Dual Tuned test the dual machine was using 74% of its processing capacity, and the quad machine was using 60% of its processing capacity.
If you have follow up questions about these results contact us again
Additional Resources
Power Mac InfoZone
Power Mac Performance
Power Mac Performance vs Others
Power Mac Buyer's Guide
Power Mac Specs & Features
Power Mac Reviews
Power Mac Discussion Forum
Apple's Power Mac Page
Apple's Previous Power Mac Specification Details
Also search at MacReviewZone/MacSpeedZone on the following part numbers M9592LL or M9591LL which should turn up additional information
http://macspeedzone.com
http://macreviewzone.com
Regards,
Comparison Crew
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Disclaimer: Remember to treat all benchmark scores with caution, and do not rely on performance scores from us in making mission critical decisions. We endeavor to make the information we provide as accurate as possible, but make no direct or expressed guarantee that this is the case
On Feb 8, 2006, at 10:14 AM, John wrote:
This message was sent from:
http://macreviewzone.com/html/reviews/guides/individual/comparison_request.shtml
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Hello,
I would like to determine if the jump from Dual Core 2.3 to Quad Core 2.5 is worth the price. Specifically, have you compared M9591LL/A versus M9592LL/A ? I am interested largely in Photoshop usage.
Thank you,
John
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