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How GPU-Z Gets Graphic Card Information

Discussion in 'GPU-Z' started by Jason S., Feb 2, 2008.

  1. Jason S. New Member

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    Hello all,

    I'm wondering how the GPU information are retrieved.

    Is there a database inside GPUZ and just does mapping via PCI vendor/device IDs or
    it reads those displayed information, like memory type, default clock rate from graphic
    card directly?


    Does anyone know how GPUZ works?

    Thanks for any possible answer.
  2. cool_recep

    cool_recep

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    Search for MFC...You can find something...related to retriewing low level info..
  3. W1zzard

    W1zzard Administrator Staff Member

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    the mapping of devices and vendors is done with predefined table
    memory type, clocks etc are read from the card directly
  4. Mussels

    Mussels Moderprator Staff Member

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    'magic'
  5. btarunr

    btarunr Editor & Senior Moderator Staff Member

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    In exceptional cases GPU-Z reads from the driver (Shader clock) :confused:

    I remember Solaris17 once clocked his shader to some 5GHz or something using Riva Tuner and GPU-Z was actually reporting his shader clock to be that 5 GHz (whatever he set in Rivatuner) It was when he used the Rivatuner hardware monitor, he realised that his shader clockgen didn't change at all.

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