Shortly lasted cheers for the Asus ROG Strix GeForce GTX 1080, in its official presentation we have seen that it was the fastest GeForce GTX 1080 custom variant with 1936 MHz turbo boost, but now it seems like everything stays at factory frequencies. When foreign media PCGamesHardware tries to squeeze more performance, they realize that the 10 power phases (8 + 2) for the VRM with two PCI-Express connectors 8 + 6 pins are not capable to Superpass 2050 MHz. The so-called Extreme Overclocking (2050+ MHz) on STRIX GTX 1080 is poor. All cards are locked to 1.25V maximum, and when the voltage gets close this value, card become unstable.

Asus ROG Strix GeForce GTX 1080 Offers Poor Overclocking 

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So how it is possible that NVIDIA had shown its reference model, the Founders Edition running at a frequency of 2,114 MHz with lower quality components, a lower VRM and only fed through a PCI-Express 8 – pin connector (and custom cooler is also 32 ° C cooler than the reference GPU). With respect to overclock GDDR5X memory now there is another story, because without problem the GPU was able to reach 5600 MHz (11.2 GHz effective), although there is a bug that the software did not display correctly the speed reached unfortunately not reveal the temperatures, although it is expected that this Strix silicon is about 30 ° C cooler relative to the reference.

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The below table shows factory Overclocking when TDP limit and temperature limit has priority:

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Now, second table shows Overclocking results, with poor 48 MHz better results over factory performance.

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Via: PCGamesHardware, Videocardz