This what I found.
"Australia statement notice
From 1 January 2012updated warranties apply to all ASUS products, consistent with the Australian Consumer Law. For the latest product warranty details please visit http://www.asus.com/support/Search/Warranty/ Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure."
The intended context there is all ASUS products purchased in Australia. You'd likely have to ship an imported GPU to a repair centre in the US and at your own cost.
EVGA is the only manufacturer that offers a global warranty policy, to the best of my knowledge. It's even transferable (i.e. tied to the owner rather than the purchaser).