The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    520m vs 640lm vs 520um and p8600 (c2d)

    Discussion in 'Lenovo' started by krate ranus, Aug 18, 2010.

  1. krate ranus

    krate ranus Notebook Guru

    Reputations:
    27
    Messages:
    60
    Likes Received:
    0
    Trophy Points:
    15
    520M --- 640LM --- 520UM --- P8600 --- Atom N280

    mhz
    2,4-2,9 / 2,1-2,9 / 1,1-1,9 / 2,4 / 1,66

    TDP
    35w - 25w - 18w - 25w - 2w

    superpi 1m
    17s - 15s - 28s - 20s - 88s

    2m
    38s - 37s - 65s - 50s - 194s

    32m
    901s - 886s - 1489s - 1160s - 4302s

    3dmark06 CPU
    2727 - 2582 - 1298 - 2135 - 502

    Drystone
    34553 - xxxxx - xxxxx - 22444 - 4155

    Whetstone
    28514 - xxxxx - xxxxx - 16370 - 3458

    Cinebench single
    3024 - 2980 - 1700 - 2588 - 564

    multi
    6645 - 6043 - 3077 - 4857 - 868

    wPrime32
    27s - 21s - 38s - 33s - 115

    wPrime1024
    830s - 667s - 1224s - 1099s - 3634s

    Notebookcheck: Mobile Processors - Benchmarklist

    I find it interesting that the 640lm is about as fast as the 520m but its only 25watt including the GPU where the older p8600 is 25w+the GPU

    The 640lm looks like a winner to me.
     
    krate ranus, Aug 18, 2010
    #1
  2. krate ranus

    krate ranus Notebook Guru

    Reputations:
    27
    Messages:
    60
    Likes Received:
    0
    Trophy Points:
    15
    Going up to 540m or 620m from 520m gives you such a small performance boost its not even worth considering, we all knew that, but now you can have the same performance with the 10w less 640lm.

    The UM models use roughly twice the power of an atom (when you calculate in the GPU and the rest of things drawing current), but delivers much more than 2x the atom performance.

    I would like to see a 1,2kg x301 with UM CPU. Or even 640LM, that would be a really nice laptop IMO.
     
    krate ranus, Aug 18, 2010
    #2