Nvidia GTX 1080 Won’t Achieve Higher Clocks Thanks to Board Power Limit
Reviews on GeForce GTX 1080 are out, which give us a close glimpse at what Nvidia’s new flagship card can really do, especially in terms of overclocking. No doubt, 1080 is a powerful overclocker, but many reviewers reported having trouble when trying to achieve the same boost clock speeds of ~2 GHz that were mentioned during the official presentation.
Well, folks over at the PCGamesHardware have confirmed those reports as they performed a mini test to know what was actually holding back the GTX 1080 from achieving higher clocks. Turns out it is not the temperature that confines the GPU, but the board power limit.
We know that GTX 1080 reference model has a TDP of 180W, which is powered through a single 8-pin connector. This power connector does limit board power, even overclocking tools can help reach only 120% TDP, which means GPU won’t go beyond 215W.
In other word, you won’t be able to hit ~2114 MHz clock speeds unless you add more power connectors. Or, better wait for custom cards to launch to see what they have to offer in this regard.
Meanwhile, you can check out the GTX 1080 full specifications which recently leaked out. Nvidia’s new Pascal based flagship launches on May 27th, having an MSRP of $599, while the Founders Edition will be available for a higher cost of $699.