GeForce GTX 580 Power Monitoring Details

NVIDIA GeForce - Power connectors

Source: GeForce GTX 580 power monitoring @ NVIDIA.

NVIDIA has implemented a new power monitoring feature on GeForce GTX 580 graphics cards. Similar to our thermal protection mechanisms that protect the GPU and system from overheating, the new power monitoring feature helps protect the graphics card and system from issues caused by excessive power draw.

The feature works as follows:

  • Dedicated hardware circuitry on the GTX 580 graphics card performs real-time monitoring of current and voltage on each 12V rail (6-pin, 8-pin, and PCI-Express).
  • The graphics driver monitors the power levels and will dynamically adjust performance in certain stress applications such as Furmark 1.8 and OCCT if power levels exceed the card’s spec.
  • Power monitoring adjusts performance only if power specs are exceeded AND if the application is one of the stress apps we have defined in our driver to monitor such as Furmark 1.8 and OCCT.
    • Real world games will not throttle due to power monitoring.
    • When power monitoring adjusts performance, clocks inside the chip are reduced by 50%.

Note that future drivers may update the power monitoring implementation, including the list of applications affected.

I don’t know why, but I feel that GTX 580 power draw monitoring will bring old versions of FurMark back to life 😀

4 thoughts on “GeForce GTX 580 Power Monitoring Details”

  1. Zibri

    LOL! It seems someone is afraid of real stress tests here 🙂

    I’ll still stick with my couple of 460s 🙂

  2. Squall Leonhart

    furmark isn’t a stress test, its a power virus that can damage more then just a graphics card.

  3. val

    Powerr virus, heh?
    This mothf*rs (bot of them) should leave some margin of safety but not overclock card up to the VRM limits and over.
    fake TDP, “limited stability” on default clock…
    what next?

  4. Pingback: [Tested and Burned] ASUS GeForce GTX 560 Ti DirectCU II TOP Review - 3D Tech News, Pixel Hacking, Data Visualization and 3D Programming -

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