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New Dual Core G5 - Fall 2005

Discussion in 'Macintosh Computers' started by adamfilip, Aug 26, 2004.

  1. macrumors 6502a


    I wish! - Black Anodized Aluminum
  2. macrumors 68000


    thats frickin awsome... and with the specs damn! i want one!

    it will never happen tho... sadly :(
  3. macrumors 603


    Also, expandable to 16 gigs of RAM :)
  4. macrumors 6502a


    well if you use 2gb sticks

    im saving my pennies
  5. macrumors G5

    Sun Baked

    At this rate, the population in Spamville (just off the G5 highway) is going to explode.

  6. macrumors 65816


    No one will be using PC3200 by then... my guess is that it'll be DDR2 or DDR3...
  7. macrumors 6502a


    its only a year away

    ram hasnt changed much since the year ago when the g5 was introduced

    i figured DDR2 wont be readily availale by next fall
  8. macrumors 65816



    There are computers using DDR2 right now.
  9. macrumors 6502a


    Hate to be nitpicky but realistically, wouldn't it have a 1.75GHz FSB?

    Other than that, nice specs. Let's just hope IBM can pull it off given their too recent history in production of processors. I like the external SATA connections too, could be very useful; I find the current 2 drive configuration too restricting. Oh, and STANDARD bluetooth, I got my Rev A when Rev B's were out so I couldn't customize and I'm saddened by not being able to get bluetooth without attaching a rather shoddy looking dongle to the pristine look of the G5.
  10. macrumors 6502a


    incase you didnt realize it.. its just made up..

    anyways.. the frontside bus doesnt have to be 1/2 of the clock speed if you read the tech documents on the g5 you wil see it has other multiplier settings. aswell

    similar to how the memory isnt half of the bus speed . since they are independant

    but to make you happy.. now with a 1750mhz Front side bus
  11. macrumors 6502a


    Yeah, I knew it was fictitious. Also, thanks for the info on the FSB speed. I just assumed that it was always 1/2 the clock speed because that's how all of the past/present G5's have been made.
  12. macrumors 6502a


    Only 1MB for a dual core? What's wrong w/ them. It's a photochop! Make it unbelievable like 4MB.
  13. macrumors 68010


    Also the black casing, it is sooooo Dell-like....But I'll buy two, just for folding! :D
  14. nek
    macrumors member

    I would expect faster and more dense RAM options, but otherwise it looks good to me. PC4300 DDR2 (533MHz) is already shipping in large quantity and is available as 2GB and even 4GB DIMMs. So I think it should have up to 16GB of PC4300 RAM optional (or 32GB if Apple adopts newer tech before its available in sufficient quantity). Assuming IBM fixes its problems, it looks reasonable to me.
  15. macrumors G5

    Sun Baked

    Nope, that never occurred to me... I just wanted to use the dancing monkeys. [​IMG]
  16. macrumors P6


    I don't really are for the black anodized aluminum look. Prefer the current aluminum look, it shines. It is always nice to dream. Is there thinking that there will be no G5 upgrade at MWSF? Should we be looking for an upgrade around WWDC?
  17. macrumors 68000


    I don't know if you'll know the answer to this, but can the multiplier basically be anything? I mean, I know the common ones like 2:1 and 3:1, but what about 7:3, which is what you'd need to get a 1.5 GHz Frontside bus on a 3.5 Ghz chip? Is that possible? What about 14:11? :)
  18. macrumors Penryn


    I don't see an update at MWSF. If their lucky, they'll finally catch up on their order backlog by then.
  19. macrumors member

    You guys do realize that that fast of a Front Side Bus won't really matter unless you have ram that can match the same speed. Even the current 1.25Ghz FSB can't be fully used because steve won't upgrade to DDR2.

    And yes, PC's already have DDR2 and it rawks.
  20. macrumors 68010


    Apple will put four busses of ddr1 ram in! Then when you upgrade you have to buy 4 same sticks of ram!! :D
  21. Moderator emeritus

    Mr. Anderson

    Nice idea, but what this makes me wonder is where Apple is going to go when it redesigns the current form factor.....

  22. macrumors demi-god


    I would not be surprised if DDR2 made its debut in Macs along with PCI Express. Dual-Channel DDR2-600 would fill a 1.25 GHz system bus nicely.
  23. macrumors 6502


    Wow, MrJohnson you really need to get educated on this material.

    All of you need to read Memory Bandwidth vs Latency Timings. The majority of the article explains terms and then shows why DDR2 is only better in some situations; much like the P4 itself, in the pursuit of marketing leads the memory market is making questionable design choices. Bandwidth and latency are needed for different applications, and the expansion of bandwidth is leading to worse latency due to technological constraints. Simultaneously other innovations in memory bus design are making bandwidth far less important from a performance perspective by "solving" bandwidth outside the Ram stick.

    All of this is fine, but page 6 is especially telling. This runaway expansion of bandwidth has been making up for its worse and worse memory timings by relying on motherboard speeds. Slower motherboard speeds in the Athlon64/XP (and by extension Macs) mean that the weak latency stats are not being made up for.

    Athlons run better under tight-timing slower RAM than the currently stylish high-bandwidth DDR2 implementations, partly because the higher speed RAM can't achieve those speeds on an Athlon64; ironically the putatively slower, tighter-memory-timing sticks were able to be set to higher speeds.

    Which just makes MrJohnson seem all the more foolish. Apple rightly is sticking to DDR RAM for the time being. Even speeding up the motherboard (while laudable) wouldn't change the basic validity of the DDR decision as they would no doubt further parallelize their memory bus, making the CPU latency-limited instead of bandwidth limited (which, for some applications, it already is).

    Before someone asks why increasing the speed of the motherboard won't solve the latency problem as it is supposed to, on current die sizes as speed goes up the timings have to worsen, or have higher voltage throughput than JEDEC is willing to permit.

  24. macrumors demi-god


    How true! DDR2's biggest issue is the increased latency it has associated with it. The way things are going right now, Mac OS X might just start using MRAM first, making DDR2 redundant...
  25. macrumors P6


    You shouldn't really talk about a fellow MacRumors that way. It's OK do discuss why you disagree with someone. That problem is making a personal attack, it just isn't cool. :eek:

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