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Thread: Geforce 8600m in SLI vs 8700m?

  1. #1
    Join Date
    May 2003
    I'm looking at getting a Toshiba X200 laptop. There're two models available here, the 15k and the 21k. They're both exactly the same except that the 21k has two 8600m GTS' running in SLI while the 15k has only one 8700m GT.

    Which is the better option for gaming? A single, more powerful 8700 or two 8600s in SLI?

    Ardeth In Pre-Production

  2. Software & Hardware   -   #2
    DooMeD68's Avatar Domain Of Sutekh
    Join Date
    Sep 2007
    Planet Deimos Commander
    The new chip is essentially a higher-clocked 8600M GT: both GPUs contain 32 unified shader engines - Nvidia calls them Stream processors - but while the 8600M GT is clocked at 475MHz, the 8700M GT runs at 625MHz. The two chips' memory banks are clocked at 700MHz and 800MHz, respectively.
    The new, enthusiast-oriented chip has a texture fill rate of ten billion texture elements per second to the 8600M GT's 7.6 billion. Nvidia quoted big performance gains over the old GeForce Go 7900 GS, but a more apposite comparison would be with the 8600M GT and 8600M GS, but we'll have to wait for independent testing before we can workout which of the three chips offers the best price:performance ratio.
    Both GPUs connect to 512MB of GDDR 3 graphics memory over a 128-bit bus. However, Nvidia said the 8700M GT's bus is configured in a "dual-rank" mode. It has bandwidth of 25.6GBps - the 8600M GT's is 22.4GBps.
    Toshiba X200 with 2 8600M-GT's in SLI,will be very fast. It should definitely beat a single 8700M-GT (a single 8700M-GT is about 30% faster than an 8600M-GT)
    and it's cheaper too !


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