As we all have learned at this point the GTX580 has both hardware and software (driver) influenced power monitoring features. As it detects high current usage, it will purpose cut the clocks by 50% to decrease consumption. This is not an issue for gamers but this has been an absolute headache for reviewers as most still could not unlock the full power of the card with applications like Furmark and OCCT.
Well now we have the truth:
I have just discovered a review from Fudzilla (surprise surprise) that uncovers the true maximum temperatures and peak power consumption of the GTX580 with use of an older version of Furmark.
See here:
Not as bad as we thought. Although the consumption logically makes sense that is slightly higher (more cores, higher clocks), it's not even close to what the GF100 512SP test sample was. And heatwise, is definitely an improvement over the GTX480 either way, especially the cooler runs quieter and doesn't need as much fan speed to get to that temperature.
I hope this information is useful to you guys. In case you guys want to experiment with your own, I have provided links to both the older Furmark 1.6.0 as well as the latest 1.8.2 at the bottom. Enjoy.
Furmark 1.6.0 Download
Furmark 1.8.2 Download
Source
The Anti-Furmark Discovery (More Info)
Well now we have the truth:
I have just discovered a review from Fudzilla (surprise surprise) that uncovers the true maximum temperatures and peak power consumption of the GTX580 with use of an older version of Furmark.
See here:
Quote:
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Nvidia uses a new technology dubbed Advanced Power Management on the GTX 580. It is used for monitoring power consumption and performing power capping in order to protect the card from excessive power draw. Dedicated hardware circuity on the GTX 580 graphics card performs real time monitoring of current and voltage. The graphics driver monitors the power levels and will dynamically adjust performance in certain stress appllications such as FurMark and OCCT if power levels axceed the cards spec. Power monitoring adjust performance only if power specs are exceeded and if the application is one of the apps Nvidia has defined in their driver to monitor such as FurMark and OCCT. This should not significantly affect gaming performance, and Nvidia indeed claims that no game so far has managed to wake this mechanism from its slumber. For now, it is not possible to turn off power capping. GTX 580’s power caps are set close to PCI Express spec for each 12V rail (6-pin, 8-pin, and PCI Express). Once power-capping goes active, chip clocks go down by 50%. It seems that this is the reason why GTX 580 scores pretty bad compared to GTX 480 in FurMark.  |
The Test
Quote:
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FurMark temperatures didn’t go over 76 °C, which isn’t very realistic – in gaming tests we measured up to 85°C, which seems to suggest that Nvidia overdid the preventive measures.
 GPUZ 0.4.7 doesn’t show downclocking during FurMark, but the new version is set to change that. Below you see the GPU temperature graph we captured during Aliens vs. Predator tests.  After overclocking, temperatures were at the same level as before. The fan was a bit louder, but still not too loud.  |
The Truth Unlocked (GTX580 is Unleashed)
Quote:
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The older FurMark, version 1.6, shows that GPU can hit 90°C.
 Consumption is on par with the GTX 480. You’ll find older FurMark test results below, because in new FurMark tests our rig didn’t consume more than 367W. During gaming we measured rig consumption of about 450W.  |
I hope this information is useful to you guys. In case you guys want to experiment with your own, I have provided links to both the older Furmark 1.6.0 as well as the latest 1.8.2 at the bottom. Enjoy.
Furmark 1.6.0 Download
Furmark 1.8.2 Download
Source
The Anti-Furmark Discovery (More Info)
Liquid Fusion
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Liquid Fusion
(13 items) |
