the relation between FPS and the bus used by your GPU

Discussion in 'Gaming (Software and Graphics Cards)' started by miro_gt, Jan 26, 2013.

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  1. miro_gt

    miro_gt Notebook Deity

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    I dont think that is quite correct - the chip comes on a chip carrier board which is also put by the manufacturer, and this is what OEMs buy and put on their motherboards one way or another. Very few laptops come with MXM board nowadays, but that will be an additional board where the chip carrier board with the actual chip on top sits on.

    here's picture - what OEMs buy is the chip that sits on its carrier (the green board), and then OEMs put all that onto the MXM board (blue)
    http://www.3dnews.ru/_imgdata/img/2012/01/12/622780/s700g7a-inside-4.jpg

    now what bus the chip uses is already hard wired onto the chip / chip carrier, so from there on what the OEM does is separate. Here's GPU-z screenshot of a GPU that uses x16 link but the OEM chose to connect it at x8 speed:
    http://farm9.staticflickr.com/8491/8300354497_01d1005c50.jpg


    oh trust me I'm sure that's the bottleneck. Apparently I'm not the only one who figured that out:
    http://forum.notebookreview.com/e-g...851-diy-egpu-experiences-134.html#post6582485

    I cant run 3DMark11, I'm on XP 32bit atm.

    so they could safely do x2 link for the 4200m with the same result, or x4 for the 5200m, yet both are connected over much higher links. So not as smart implementation IMO, or is there something else ..

    but optimus compression works quite good
     
  2. Meaker@Sager

    Meaker@Sager Company Representative

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    The simplification of creating a smaller bus drops off each time you cut lanes and you don't want everyone going crazy how they don't have many lanes connected.

    In the MSI GX60 with the 7970M has 8x Gen2 lanes connected.
     
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