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PCI Express

Discussion in 'Hardware' started by noelg24, Sep 17, 2004.

  1. noelg24

    noelg24 Terabyte Poster

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    Probably a dumb question to ask but I take it PCI Express cards can be used in the normal PCI slots of mobos? or have they decided to put a certain PCI slot for these new cards?
     
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  2. Phoenix
    Honorary Member

    Phoenix 53656e696f7220 4d6f64

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    um, they use a completly new interface
    and i dont believe they can be used in standard PCI slots

    |===| <--- PCI Express Slot
    |========== ===| <---- PCI Slot
    approxamatly
     
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  3. noelg24

    noelg24 Terabyte Poster

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    :eek: wow that small? and yet they call it express...I wonder whats so express about the size of that? thanks mate...
     
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  4. Fergal1982

    Fergal1982 Petabyte Poster

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    the express part comes from the fact that the data transfer rate of PCI express is a whopping 16GB/s compared to the piddly 132MB/s in standard PC PCI bus, and the moderate 2.1GB/s for an 8xAGP bus.

    two related questions for you guys though. i know PCI express is affecting graphics cards, but are they still dedicated (ie separate from the main PCI bus), and whats the data transfer like on them?

    and the second question (third actually, i know). why arent we using hypertransport instead of PCI express, given that it actually exists, and has a 12.8GB/s transfer rate!

    Fergal
     
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  5. Phoenix
    Honorary Member

    Phoenix 53656e696f7220 4d6f64

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    they still use dedicated sltos really
    partly because most mobo makers are making boards with a few PCIe 1x slots, and one PCIe 16x slot
    obviously most dedicate the 16x slot for the graphics card

    cant answer the other one :)
     
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  6. Fergal1982

    Fergal1982 Petabyte Poster

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    i spose its a case of keeping a better one in reserve till PCI express is saturated the market. although by that point its of little consequence cause we will most likely have a faster alternative to jump to!

    thanks though phoenix. (PCIex16 huh? thats......... 256GB/s transfer rate. bloody hell thats gonna be fast!)

    Fergal
     
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