The difference between 17" and 15" in CPU

Discussion in 'MacBook Pro' started by deanmadoo, Jan 9, 2009.

  1. deanmadoo macrumors member

    Joined:
    Dec 25, 2008
    #1
    I was wondering whats the difference between the 15" CPU and the 17"?
    other than clock speed

    I read somewhere that they're not the same line.

    Is there a difference in speed or power efficiency?
     
  2. infernohellion macrumors 6502

    infernohellion

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    København
    #2
  3. cathyy macrumors 6502a

    Joined:
    Apr 12, 2008
    #3
    17" MBPs offers the option of having a matte screen, while all 15" MBPs come with glossy screens.

    Also, 17" MBPs have an internal silver-zinc battery while 15" MBPs use the traditional lithium-ion battery.
     
  4. deanmadoo thread starter macrumors member

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    Dec 25, 2008
    #4
    Pls read the post
    I ask about the CPU not the overall spec
     
  5. drlunanerd macrumors 65816

    drlunanerd

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    #5
    They aren't silver-zinc. Still plain old lithium-polymer. Check Apple.com.
     
  6. cathyy macrumors 6502a

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    Apr 12, 2008
    #6
    Yea my bad. Sorry. I just re-read the title and realized my mistake. :)

    Well, guessing from the clock speeds I'm going to guess that the 17" uses the T9550 & T9800 CPUs, while the 15" notebooks use the P8600 & T9400. There's pretty much no difference between the T9400, T9550 & T9800 other than clock speed. However there are some differences between the P8600 & T9xxx.

    Mainly, the P series uses less voltage than the T series; 25W vs 35W. Also the P8600 has only 3MB of L2 cache while the T9xxx has 6MB of L2 cache.

    Noted, thanks. :)
     
  7. raymondu999 macrumors 65816

    Joined:
    Feb 11, 2008
    #7
    The main difference is actually no difference. It's just that they're newer. the high end 15 came in 2.53GHz and 2.8GHz. the same 2.53 model isn't available anymore, and has been replaced by intel at 2.66, while the 2.8 that came with the high end 15" has been replaced by a 2.93 model.
     
  8. deanmadoo thread starter macrumors member

    Joined:
    Dec 25, 2008
    #8
    Any speculation on whether Apple will bump up the high end 15" to 2.93Ghz?
    Because i am thinking of buying the 15" 2.8Ghz
    And was wondering should I wait for a CPU Bump?
     
  9. cathyy macrumors 6502a

    Joined:
    Apr 12, 2008
    #9
    Nah, I doubt they will refresh the 15" MBPs again so soon. You honestly aren't going to notice much of a difference of 0.13GHz clock speed in most tasks, unless you do really heavy video encoding or something really processor intensive.
     
  10. raymondu999 macrumors 65816

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    Feb 11, 2008
    #10
    Yeh. 0.13 is almost humanely impossible to detect.
     
  11. deanmadoo thread starter macrumors member

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    Dec 25, 2008
    #11
    I'm going to go to college in May

    Do you think there would be an update by then?:D
     
  12. fjk macrumors regular

    Joined:
    Jun 9, 2008
    #12
    The earlier you get it now, the less you will regret it later when it updates right after you buy it.
     
  13. kastenbrust macrumors 68030

    kastenbrust

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    Dec 26, 2008
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    North Korea
    #13
    The 15" MBP and the 17" processors are actually from the same intel line, the 17" just has the updated models.
     

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