Daystar Announces 1.92 gHz PowerBook G4 Upgrade?

Discussion in 'Macintosh Computers' started by fklehman, Nov 18, 2005.

  1. macrumors regular

    fklehman

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    #1
    Daystar is now advertising a future 1.92 gHz G4 upgrade for the Aluminum PowerBook G4. Could just be vaporware at this point, and no word on whether it is a 7447A or a 7448, but I suppose it's worth mentioning. Not sure I feel like voiding my Applecare just yet, but at any rate here is the full text:

     
  2. Moderator emeritus

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    #2
    They seem to be pushing whatever processor, most likely a 7447A, for all its worth. If it's cooler than the 1.25 GHz processor under normal circumstances, I'd be pleased, depending on price, of course. They're probably months away from having a deliverable solution but it should be interesting package, especially if they're replacing the system controller with something more aggressive.
     
  3. thread starter macrumors regular

    fklehman

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    #3
    A 7448 would be even better since it draws less power and of course has the 1MB cache to the 7447's 512k. Of course, Apple was unable to get it into the latest PB revision b/c of various stability issues. Kind of makes you wonder how Daystar would succeed where Apple failed, and makes a 7447A seem more likely. On the other hand, Apple had pretty much no PPC engineering team left on the PBs at that point to tackle any problems, so maybe Daystar actually COULD succeed where Apple failed and get a 7448 in there (it would be hard to do worse than Apple has done with the PBs). And as the proud owner of a G4/550 Daystar upgrade for my Pismo, which seems to be the most highly rated of the 5 or so Pismo upgrades that were available at one time or another, I know that they do good work.

    I'll be interested to see what Daystar brings to market, although, as I said, I won't be to eager to void my Applecare on the brand new 15" PB that is currently winging its way to me. And by the time its Applecare runs out, I will doubtless be eying Rev. C Intel 'Books and an upgrade won't make any economic sense. I've also heard that the new PBs run alot cooler, so less heat wouldn't be a big selling point either. But if you had one of the original 1.25 gHz aluminum PBs, the upgrade might make an awesome stopgap while you wait for Rev. A or B Intel 'Books.

    Incidentally, how would a new system controller contribute to less heat? I don't know quite enough about computer stuff to get that one.

    Edit: If the processor is indeed at 1.92 gHz and they are pushing a processor for all its worth, that would seem to point to the 7447A as well; doesn't the 7448 scale higher? Or is the 7448 scaling in a similar range, just with better performance at the same clock speed?
     
  4. macrumors 65816

    MacTruck

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    #4
    Does the 7448 even exist? I mean really has ANYBODY used it in anything yet? Its been out for how long?
     
  5. macrumors 601

    generik

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    #5
    Why a 7447A?

    Are those even capable of clocking to that kind of speed? If so, why weren't they included in the last upgrade?
     
  6. thread starter macrumors regular

    fklehman

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    #6
    That's the same question I had, and what makes me suspicious--if Apple couldn't make a faster 7447A or even a similarly clocked 7448 work in the PB revision, how is Daystar doing it? Apple tried the 7448 for awhile, we got all the rumors about the 30 mHz speed bump, yay, and then THAT didn't even materialize. Turned into a Speed Dump. So where is Daystar getting its optimism? I'll believe it when I see it.
     
  7. macrumors 6502

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    #7
    Hmmm, if it has worse battery life I would not think it would be worthwhile :rolleyes:
     
  8. macrumors 65816

    TheMonarch

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    #8

    Less heat means = Longer battery ;)



    Anyways, won't the 1.92 GHz processor be yawning with a crummy 167mhz bus? :confused:
    Its already running at 1/10th the speed...
     
  9. macrumors 6502

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    #9
    That's what the cache is for.... G4 upgrades perform very well according to barefeats. I'd expect iit to perform at near the speed of a 1.8ghz G5.
     
  10. macrumors 68030

    johnnyjibbs

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    #10
    This is interesting, considering Apple's highest G4 to date is 1.67GHz. Too bad I have a 12" PB.
     
  11. macrumors G4

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    #11
    It's still in ramp-up.
     
  12. macrumors 601

    generik

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    #12
    I still hope to see a 7448 in MWSF.

    Call me a nutcase, but I want my final rev collector PB

    Edit: Not this current POS we got with flickering screens filled with freaking horizontal lines all over :(
     
  13. macrumors 6502

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  14. thread starter macrumors regular

    fklehman

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    #14
    Some yahoo posted in the Apple Releases New PowerBooks thread two weeks ago claiming to have some beta/prototype 1.92 gHz PBG4 with a 7448. He claimed that he could talk about it because he didn't work for Apple and because Apple wasn't involved in the project anyway. He didn't post any pics or benchmarks and gave lots of evasive answers, so everyone shouted him down and called BS. I'm not saying I believe him cause he never backed up his claims, but it sure is a coincidence to have the two things happening so closely together.

    Edit: See pages 19 and 20 of the thread for the relevant bits (posts 753-792).
     
  15. macrumors 6502a

    Spectrum

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    #15
    Fklehman, this is the correct link I think... page 31

    http://forums.macrumors.com/showthread.php?p=1886871#post1886871

    I was totally sceptical by teddy, but note that he says in sig - "special delivery from DS".

    ...DayStar?

    a spooky coincidence if not.


    --
     
  16. thread starter macrumors regular

    fklehman

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    #16
    Yeah, that's right--I didn't know how to directly link to an individual post, so I had to just link to the page number and then cite the post numbers. How'd you manage that? It IS a weird coincidence, that's why I thought it worth mentioning. The bit about having only a 512k cache on a 7448 really didn't make any sense, because I didn't know that was even possible, let alone desirable since the larger 1MB cache is one of the big advantages of the 7448 over the 7447A.
     
  17. macrumors 601

    stoid

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    #17
    This would certainly be a godsend for my 2 year old 1.25 GHz Aluminum PowerBook. The nice thing being that AppleCare would be almost up and so I wouldn't be voiding much warrantee to install it. Any ideas to how much an upgrade like this would cost? I would be willing to spend maybe $800-1100US but any more than that, and I would probably just get a new laptop, and sell my current one.

    What about graphics cards? Would this let me get something faster than my Mobility 9600?
     
  18. macrumors 6502a

    Spectrum

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    #18
    Click on Teddy (or whoever) > Find more posts by... > click on the one you are interested in > copy the resulting http address.
    :)
     
  19. thread starter macrumors regular

    fklehman

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    #19
    I doubt it would cost even that much. When I upgraded my Pismo to a G4/550 from its stock G3/400 via Daystar in May 2004, it cost $350. Daystar couldn't price the upgrade at $800 because it would just drive people to buy an iBook instead. As an educated guess, based on the pricing of other PB upgrades out there, I would say somewhere between $400-$700. They really couldn't get away with charging much more than that when iBooks are so cheap and the benefits of 1.92 gHz vs. 1.25 gHz are so minimal (since you're always dealing with a pokey 167 mHz bus in either case). The one factor that cuts in their favor is the Intel transition, because many may want to upgrade in order to hold out for Rev. B of the Intel books or do it in order to hold on to native PPC speeds and Classic compatibility for a while longer.

    I doubt it. Daystar would probably have to replace the entire logic board, since the GPU is soldered to it. That's why I'm finally getting a new PB myself, because the pokey 8MB Rage Pro GPU in my Pismo might as well not even be there. I've upgraded everything else that is upgradeable, but the GPU is an albatross around the Pismo's neck, has been ever since OS X started offloading GUI loads to the GPU.
     
  20. thread starter macrumors regular

    fklehman

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    #20

    Thanks, Spectrum--I realized also that we were quoting different page numbers b/c we probably have our preferences set to display different numbers of posts per page (I get 40, I think). I should have thought of that.
     
  21. macrumors 6502

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    #21
    :confused: The slow bus speed of the G4 does not hurt it in most benchmarks!
     
  22. thread starter macrumors regular

    fklehman

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    #22
    The slow bus speed sure doesn't help it--G5s have a bus running at 1/2 the speed of the processor. The only reason the 7448 is competitive with a G5 is because of its larger cache, which helps to compensate for the pokey bus. Hell, my Pismo has a 100 mHz system bus! In five years the bus speeds in PowerBooks went from 100 mHz to 167 mHz! That's nothing.
     
  23. macrumors 6502

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    #23
    Ohh even the 7447A compares well to G5 at same clock speeds.:p But it is known that the G4 has a faster altivec unit.
     
  24. macrumors 601

    generik

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    #24
    Hey, now that you guys mentioned it, it makes sense!

    DS = Daystar!

    *waves wand* off to ebay you go!
     
  25. macrumors 68030

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    #25
    This is awesome, my 1.25 Ghz PB is out of warranty anyways...

    I hope it doesn't cost too much, then it will be a great upgrade for my PB. It actually runs fine as it is, but this would further stretch out its lifespan.

    I also wonder what the effect on battery life will be. If the new CPU is that much more efficient that it generates less heat at greater speed, then it should use less battery power, right?
     

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