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Old Aug 22nd, 2005, 05:12 PM   #1
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G5 vs G4

I'm sure this is not a new question.

There is a dual 1.25 G4 on the trading post that I am condering. The value looks good, but I am curious how it rates against, say a SP 1.8 G5 (surprise - also listed)

How do they rate against eachother in performance? Is the G5 SP expandable to DP? Is it even reasonable to consider that sort of expense?

They seem pretty comparable as far as components. Does the G5 really outperform the G4? I don't really understand what the difference is aside from perhaps breaking Mhz barriers that the older chip couldn't reach.
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Old Aug 22nd, 2005, 05:20 PM   #2
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I've not seen any processor upgrades for the Power Mac G5, so I don't think it'd be possible to upgrade a single processor G5 to a dual processor G5.

Unless you're using software that's designed to take advantage of two processors, a single processor Power Mac G5 will probably feel faster than a dual processor Power Mac G4. Even with the right software, the G5 might still come out on top.
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Old Aug 22nd, 2005, 05:39 PM   #3
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G5's have a VERY fast system Bus... opposed to the 166MHz G4 one... so right there you're going to gain speed.. also the G5's use DDR ram at high speeds so that also will out preform the G4's... BUT on the flip side.. the G4 does have the snazze case that looks gorgeous and it also has the flip down side to add componts.. but overall.. the G5 is your best bet if you want speed... it will out preform the G4 like there's no tomorrow
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Old Aug 22nd, 2005, 06:22 PM   #4
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Here. Mull these over.

http://www.barefeats.com/g5.html

http://www.barefeats.com/fcp4.html

Also, I'm going on record as betting that there will probably never be CPU upgrades for G5 systems, given their short lifespan in the Apple product line and given IBM's focus elsewhere.
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Old Aug 22nd, 2005, 06:51 PM   #5
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Go with the G5 for sure. (If the prices are comparable)
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Old Aug 22nd, 2005, 07:43 PM   #6
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well, depending on what you're doing, i've read everywhere that the 1.42 Ghz MDD smokes the single g5's on tasks which use dual processors, of course the g5 is faster on tasks which DON'T use multiple processors...

i would love an MDD, i personally feel they look MUCH better than the new g5, and they are fast enough.


bus speed shmeed, PirateMyke, you seem very confident that all those added bonuses, DDR here, bus speed there, More Mhz everywhere, i've seen enough proof that a dual g4 smokes a single g5 on MP intensive tasks...(refer to my thread about Mhz Myth video...)


only reason i would get a single g5 is if it had PCI-X which can support monstrously powerful graphics cards...
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Old Aug 22nd, 2005, 07:48 PM   #7
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and my point about graphics cards is pointed out in Macaholic's first link, scroll down and click on what about "3d gaming"


PCI-X is fast.
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Old Aug 22nd, 2005, 08:33 PM   #8
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Mmm, G5 iMac?
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Old Aug 22nd, 2005, 08:38 PM   #9
 
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Go G5!
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Old Aug 23rd, 2005, 10:47 AM   #10
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Hmm... all those test are graphics based. None seem to have much to do with audio editing (not that I really know a great deal about audio work, but that is what I am primarily using my Mac for).

The 1.8 G5 is only a couple notches better than the Dual 1.25 G4. Though I am sure on single Processor tasks it would bury it.

G5 seems the way to go. Assuming the price is right...

Thanks for the insight. The collective knowledge on this forum is impressive.
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