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  1. #1

    Thundermoon1994's Avatar
    Member Since
    Dec 26, 2006
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    Kent, OH
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    Specs:
    15" MacBook Pro w/ 2.4 GHz C2D, 4 GB RAM, 250 GB
    Smile Difference between 15" and 17" screens (res)
    I know that the 17" screen meets the 1080 requirement for full HD, and the 15" only has 900 lines. As far as pixel density goes, do both screens have the same number of pixels per square inch?
    -- Unibody 15.4" MacBook Pro (2.4 GHz Core2Duo Penryn, 250 GB HD, 4 GB RAM, nVidia GeForce 9400M & GeForce 9600M GT w/ 256 MB) --
    -- 8 GB iPhone 3G -- 30 GB iPod Video --

  2. #2

    macwannabe's Avatar
    Member Since
    May 19, 2008
    Location
    Florida
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    909
    Specs:
    27" i7 iMac 2.8 Ghz, 1TB, 8GB RAM | 13" MBP 2.53Ghz 320GB HD, 4G RAM | iPad 2 64GB+3G *WHITE*
    the 17" has 133 i dont know about the 15" sry
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  3. #3

    Thundermoon1994's Avatar
    Member Since
    Dec 26, 2006
    Location
    Kent, OH
    Posts
    495
    Specs:
    15" MacBook Pro w/ 2.4 GHz C2D, 4 GB RAM, 250 GB
    Surely SOMEONE here knows the answer to this...LOL
    -- Unibody 15.4" MacBook Pro (2.4 GHz Core2Duo Penryn, 250 GB HD, 4 GB RAM, nVidia GeForce 9400M & GeForce 9600M GT w/ 256 MB) --
    -- 8 GB iPhone 3G -- 30 GB iPod Video --

  4. #4

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,465
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    The Math: and this is only approximate, not exact, didn't take any actual measurments.

    16:9 screen (and yes I know our Mac's are 16:10), just makes it easier.

    15" screen is 9" x 12" = 108 square inches
    1440 x 900 = 1,296,000 pixels ÷ 108 = 12,000 pixels/SI


    17" screen is 10.2" x 13.6" = 138.7 SI
    1920 x 1200 = 2,304,000 ÷ 138.7 = 16,611 pixels/SI

    The 133 per inch Apple notes in their write up refers to pixels per inch (not per SI) - horizontally. 1920 ÷ 13.6 = 141; yes I know the math is off a little, but this is close enough for government work.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  5. #5

    Thundermoon1994's Avatar
    Member Since
    Dec 26, 2006
    Location
    Kent, OH
    Posts
    495
    Specs:
    15" MacBook Pro w/ 2.4 GHz C2D, 4 GB RAM, 250 GB
    I have no idea why I didn't just do the measuring and math myself! Based my measurements of my 15" MacBook Pro and a MacBook, they have 110 pixels per inch. I wonder when the 15" will get a higher-res screen.
    -- Unibody 15.4" MacBook Pro (2.4 GHz Core2Duo Penryn, 250 GB HD, 4 GB RAM, nVidia GeForce 9400M & GeForce 9600M GT w/ 256 MB) --
    -- 8 GB iPhone 3G -- 30 GB iPod Video --

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