How much faster would a 2.8ghz iMac be than a Dual PPC 1.8ghz G5 ?

Discussion in 'PowerPC Macs' started by sk8ordie, Dec 17, 2007.

  1. macrumors regular

    sk8ordie

    Joined:
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    #1
    How much faster would a 2.8ghz 24" iMac be than a Dual PPC 1.8ghz G5 with 512mb ram?

    Barely faster? Twice as fast? 10 times faster? Light years faster?


    I couldnt find any tests so if you have input or test links let me know!
     
  2. macrumors Penryn

    rdowns

    Joined:
    Jul 11, 2003
    #2
    The Intel chips run circles around the G5 with optimized software. Think of a foot race between Jobs and Ballmer.
     
  3. Retired

    psychofreak

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  4. macrumors 601

    BornAgainMac

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    #4
    Why so little ram?

    The PPC G5 with 512 is something like $10 dollars in memory today. It could perform better.
     
  5. macrumors 603

    GimmeSlack12

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    #5
    Definitely faster. Meaning, you would notice. Meaning, you would feel dumb if you got the PPC and then tried the Intel. Meaning, it matters.
     
  6. thread starter macrumors regular

    sk8ordie

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    #6
    Wow, much faster indeed! 24" iMac is really tempting, especially considering Im on a CRT monitor....
     
  7. thread starter macrumors regular

    sk8ordie

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    #7
    Yeah, Im considering buying some more RAM, 2 gigs possibly.
     
  8. macrumors 68030

    FF_productions

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    #8
    A Core Duo 2.0 Ghz would run circles around the G5.

    Now, imagine a 2.8 Ghz Extreme iMac against the same G5.


    Please, as I say with everybody, do not buy your ram from Apple.

    Get it from www.macsales.com for like $100.

    You end up with a 2.8 Ghz Beast with 4 gigs of ram.

    The iMac's are nice as hell.
     
  9. macrumors G3

    QCassidy352

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    #9
    Not really. Core duos and G5s are pretty comparable in performance at the same clock. maybe the core duo is a little faster, and with the extra 200 mhz a bit faster on top of that.

    But really, people are waaaay too quick to dismiss the G5. I've seen a poster claim that his core solo mini was faster than his dual 2.0 G5. Riiiight.
     
  10. macrumors 68030

    FF_productions

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    #10
    OK maybe I exaggerated the speed increase...

    Yeah I don't know how people can think a core solo mini can beat a dual G5. Blows my mind.
     
  11. macrumors 68000

    Joined:
    Nov 4, 2003
    #11
    I can tell you that my dual G5 1.8 with 5GB of RAM was in all things faster than a base model C2D MacBook Pro that was purchased this past summer.

    I don't know how much faster a 2.8 ghz imac is when compared to a macbook pro, but it seems like it can't be much more than just the difference in clock, because most of the elements are the same aside from the hard drive speed.

    I think that you could spend a couple hundred bucks on your G5 and make it at least as fast as a current iMac, no matter what apple's "independent" benchmarks might claim.

    In the real world, the architecture of a G5 tower is much more robust and scalable than the iMac, which is an up-sell on a laptop, made with laptop components.

    You can stuff a LOT of RAM into a G5 tower, and you will benefit from it in everyday use if you actually use your machine for work. You can leave tons of heavy applications open and lots of documents in play.

    You should also consider a 10K RPM boot drive. Seriously. You add 4-6 GB of RAM and a 10K boot drive and you'll be smoking. The only problem then is the piddly graphics card. May be worth picking up a G5-compatible graphics card on ebay, too.

    Think of it this way: An unmodified G5 tower is a solid frame with a powerful engine and lots of room to grow. It's practically 100% potential. There is a reason that pro drag racers are still using engines and from the early '70s.

    An iMac is a pimped-out honda civic that is being pushed to its theoretical limits already.

    My analogy calls apart somewhat because the G5 is more agile than the iMac, as well.

    so the car analogy isn't quite right. But you get the idea.

    imac=cool and smarmy and already being used to basically the full potential, out of the box.

    g5 tower=calm and collected, gets the job done and fast if you give it the right tools.
     
  12. macrumors 65816

    Joined:
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    #12
    The G5 is old.

    The Intel Core 2 Duo is the newest Chip Intel Has.

    The Core 2 Duo is much better than a G5.

    Do you see a pattern here.

    I beleive that your a New iMac would run Circles around an old G5. It would do it Faster, Better, Cooler, Quieter, Sexier, and most importantly, you woudlnt be running old PPC Code which is HOPEFULLY going to die soon.
     
  13. macrumors 68000

    tersono

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    #13
    The iMac will be MUCH faster. I recently switched from a dual 1.8ghz G5 to a 2.4 Ghz 17" MBP and the difference is night and day.
     
  14. thread starter macrumors regular

    sk8ordie

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    #14
    Well, I have a new 500gb Seagate 7200.11 hard drive to install, so I figure that with 2gigs of RAM should speed it up and hold me off on a new purchase for a while.
     
  15. macrumors 6502a

    eRondeau

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    #15
    Overall, the 2.8GHz Intel C2D is twice as fast on Xbench testing. Although in some cases triple. However I suspect these numbers don't give you the whole picture -- it will probably feel about ten times faster!

    http://db.xbench.com/merge.xhtml?doc2=140515

    (I just bought one and my word is it ever fast!!!) :apple:
     
  16. macrumors 6502

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    #16
    benpatient, I think you are making numerous erroneous assumptions here.
    Clock for clock the newer Intel processors do outperform G5s (assuming that you are using universal applications). Perhaps when you had your MacBook Pro you were comparing PPC apps that were running in Rosetta emulation. I really don't think $200 would make any Dual 1.8 G5 faster than a 2.8 Ghz imac.

    The dual 1.8 G5 was not a hell of a lot faster than the dual 1.5 G4.
    By the time you have purchased more memory, a better graphics card (you'd better be quick, they are all discontinued) and irritatingly noisy, small and over-priced 10k hard drives, you really should have put your money towards a new Mac Pro, and sold the G5. You'd be surprised.
     
  17. Administrator emeritus

    xUKHCx

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    #17
    Negating the fact that this is a core 2 duo. The iMac has an extra 1GHz so even if they are comparable at the same clock the iMac will streak past the G5.
     
  18. macrumors 6502

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    #18

    I hate to break it to you but a 2.8ghz imac will render/do anything faster than your 1.8ghz G5. It's simple evolution man, it's not just processors but the whole architecture.
     
  19. macrumors regular

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    Location:
    Buffalo, NY
    #19
    Intel Macs are incredibly faster than G5's; my Core (1) Duo macbook will export 1280x720 h.264 in half the time of my Dual 1.8 G5. Night and day.
     
  20. macrumors 68000

    flyinmac

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    Location:
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    #20

    Depends on the task. If it's not a processor intensive task, then don't expect to see any improvement.

    My Mac Pro (see my signature for specs) really doesn't feel any faster than my Mac Mini G4 1.25 GHz with 1 GB of RAM when performing daily tasks.

    However, on my more intensive operations, it turns a 7 or 8 hour processing time into a 1 hour processing time (such as encoding video with iDVD).

    Aside from my CPU intensive tasks, I really wouldn't be able to tell the difference between my old G4 mini and the my Mac Pro.
     
  21. macrumors 68030

    FF_productions

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    #21

    You are 100 percent correct.

    Why do you think everyone jokes around saying "Is that going to make safari snappy"

    LOL, you don't need a 4-Core Monster to surf the web and listen to iTunes and check your Mail.
     
  22. macrumors 68040

    Naimfan

    Joined:
    Jan 15, 2003
    #22
    +1

    I just went from a 2.16 GHz C2D iMac to a 1.33 GHz 15" PB. For most things, there is no perceptible difference. The things I see a big difference on are what you expect--iMovie, mainly. Office and iWork 08 are a touch slower in certain respects, but for web, mail, iTunes, etc., I don't see any difference. I will say this--getting a 50 minute movie ready to burn took about 30 minutes on the iMac, and is (effectively) an overnight proposition on the Powerbook.
     
  23. macrumors 6502

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    #23
    A desktop, faster than a laptop?

    I DON'T BELIEVE IT.
     
  24. macrumors 601

    BornAgainMac

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    #24
    It is true. A Powermac G5 is easily beaten by the Mac Mini, Macbook, and all the other Macs. It is amazing it was considered a pro machine.
     
  25. macrumors 68030

    FF_productions

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    #25
    Depends on which G5 we're talkin about.

    The last line of G5's are still very competitive with the Intel Machines.

    The 1.6/1.8 G5's, no chance in hell.
     

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