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    How to find the bus width of a GPU?

    Discussion in 'Gaming (Software and Graphics Cards)' started by Magnus135, Dec 20, 2013.

  1. Magnus135

    Magnus135 Notebook Enthusiast

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    Is there a quick way to determine the bus width of a GPU? The Nvidia GT 740M has a 64-bit version, and a 128-bit version. I'm looking at a laptop that uses that GPU, but I don't know which version it is. Is there a way I can check whether the laptop has the 64-bit version or the 128 version while using the display model in a store? Thanks!
     
    Magnus135, Dec 20, 2013
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  2. columbosoftserve

    columbosoftserve Notebook Evangelist

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    if there is a display model of the laptop you're after and you are able to have a play around, just open the nvidia control panel and click system information in the bottom left corner. all details including the bus width are included there.
     
    columbosoftserve, Dec 20, 2013
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  3. imglidinhere

    imglidinhere Notebook Deity

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    Best way to find it is just to search Google for that one. If you buy one, use GPUz to figure out what it's got.

    But I would check around first just to make sure you're not gonna get screwed.
     
    imglidinhere, Dec 20, 2013
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  4. Magnus135

    Magnus135 Notebook Enthusiast

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    Hmm, okay. I will try to do that. I did that with my current laptop (it has a GT 635M), and the system information window didn't show me anything at all...

    http://25.media.tumblr.com/a6bdd83d4fa2a60719136affa0d5aea6/tumblr_my3ptbEfSw1r8qii6o1_1280.png

    That's the screenshot. Is there something wrong with my computer/GPU? =\

    Yeah, I tried Google, but there seems to be no information for the laptop I'm looking at (Asus K451, a Haswell refresh of the K46CB, I think). I think it's because isn't available everywhere yet.
     
    Magnus135, Dec 20, 2013
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  5. HTWingNut

    HTWingNut Potato

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    HTWingNut, Dec 20, 2013
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  6. Magnus135

    Magnus135 Notebook Enthusiast

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    I did run into this solution before, but I really can't download the software on a store display model. lol, I need to know before I buy the laptop.
     
    Magnus135, Dec 20, 2013
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  7. HTWingNut

    HTWingNut Potato

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    Put it on a thumb drive. It doesn't install, it's just a simple executable.

    And ACK! Windows 7 Home Basic!? Run away... run far away.
     
    HTWingNut, Dec 20, 2013
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  8. Magnus135

    Magnus135 Notebook Enthusiast

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    Oh, okay! I'll try that, thanks! :D

    Haha, that screenshot was actually from my mom's laptop, not the one I'm gonna get. :p Any idea why nothing shows up in the system information window though?
     
    Magnus135, Dec 20, 2013
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  9. sasuke256

    sasuke256 Notebook Deity

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    64bit most likely :)
     
    sasuke256, Dec 20, 2013
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  10. Magnus135

    Magnus135 Notebook Enthusiast

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    Hmm, why do you say that? Btw, would there be a big difference in performance between the 64-bit and 128-bit versions?

    EDIT: I used the Nvidia control panel to find out the bus width. Turns out, it is indeed 64-bit. Guess you were right, sasuke256. Haha. For reference, the laptop in question was a Asus 451 LB. Thanks for all the help everyone! :D
     
    Magnus135, Dec 20, 2013
    #10